133 lines
5.8 KiB
JSON
133 lines
5.8 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-48822",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-05-22T20:57:10.977Z",
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"datePublished": "2026-06-17T19:59:34.277Z",
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"dateUpdated": "2026-06-18T15:42:42.133Z"
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},
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"containers": {
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"cna": {
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"title": "Shaarli has Stored Cross-Site Scripting (XSS) via Markdown Reference Links",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-79",
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"lang": "en",
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"description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
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"type": "CWE"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "LOCAL",
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"availabilityImpact": "NONE",
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"baseScore": 5.8,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"privilegesRequired": "HIGH",
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"scope": "UNCHANGED",
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"userInteraction": "REQUIRED",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N",
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"version": "3.1"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/shaarli/Shaarli/security/advisories/GHSA-2hgr-63wv-x462",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/shaarli/Shaarli/security/advisories/GHSA-2hgr-63wv-x462"
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},
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{
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"name": "https://github.com/shaarli/Shaarli/releases/tag/v0.16.2",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/shaarli/Shaarli/releases/tag/v0.16.2"
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}
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],
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"affected": [
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{
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"vendor": "shaarli",
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"product": "Shaarli",
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"versions": [
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{
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"version": "< 0.16.2",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-06-17T19:59:34.277Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Shaarli is a personal bookmarking service. Versions 0.16.1 and prior contain a stored Cross-Site Scripting (XSS) vulnerability in the Markdown-to-HTML conversion process used in the Bookmark Description field. An authenticated user can inject a malicious javascript: URI inside a Markdown link. The vulnerability originates in the filterProtocols method within BookmarkMarkdownFormatter.php.This method attempts to sanitize Markdown links by filtering dangerous protocols (such as javascript:) before rendering. It uses the following regular expression: (#]\\((.*?)\\)#is). This regex is designed to detect inline Markdown links, but it fails to detect Markdown reference-style links because reference-style links are resolved by the Markdown parser after preprocessing. The filterProtocols method never inspects the actual URL used in these references and as a result, an attacker can supply a javascript: URI inside a reference definition. This issue has been fixed in version 0.16.2."
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}
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],
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"source": {
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"advisory": "GHSA-2hgr-63wv-x462",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"references": [
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{
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"url": "https://github.com/shaarli/Shaarli/security/advisories/GHSA-2hgr-63wv-x462",
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"tags": [
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"exploit"
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]
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}
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],
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-06-18T15:35:27.903553Z",
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"id": "CVE-2026-48822",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "total"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-06-18T15:42:42.133Z"
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}
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}
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]
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}
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} |