DEBIAN-CVE-2026-48822
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.
DEBIAN-CVE-2026-48822
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-48822
shaarli
Source reference: /affected/0/package/name
- Affected versions
- 0.12.1+dfsg-8
Source reference:
/affected/0/versions0.12.1+dfsg-8+deb12u1Source reference:
/affected/0/versions0.12.1+dfsg-8+deb12u2Source reference:
/affected/0/versions0.13.0+dfsg-1Source reference:
/affected/0/versions0.13.0+dfsg-2Source reference:
/affected/0/versions0.13.0+dfsg-3Source reference:
/affected/0/versions0.13.0+dfsg-4Source reference:
/affected/0/versions0.13.0+dfsg-5Source reference:
/affected/0/versions0.14.0+dfsg-1Source reference:
/affected/0/versions0.14.0+dfsg-2Source reference:
/affected/0/versions0.15.0+dfsg-1Source reference:
/affected/0/versions0.16.1+dfsg-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
shaarli
Source reference: /affected/1/package/name
- Affected versions
- 0.14.0+dfsg-1
Source reference:
/affected/1/versions0.14.0+dfsg-2Source reference:
/affected/1/versions0.14.0+dfsg-2+deb13u1Source reference:
/affected/1/versions0.15.0+dfsg-1Source reference:
/affected/1/versions0.16.1+dfsg-1Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "shaarli",
"purl": "pkg:deb/debian/shaarli?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"0.12.1+dfsg-8",
"0.12.1+dfsg-8+deb12u1",
"0.12.1+dfsg-8+deb12u2",
"0.13.0+dfsg-1",
"0.13.0+dfsg-2",
"0.13.0+dfsg-3",
"0.13.0+dfsg-4",
"0.13.0+dfsg-5",
"0.14.0+dfsg-1",
"0.14.0+dfsg-2",
"0.15.0+dfsg-1",
"0.16.1+dfsg-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48822.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "shaarli",
"purl": "pkg:deb/debian/shaarli?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"0.14.0+dfsg-1",
"0.14.0+dfsg-2",
"0.14.0+dfsg-2+deb13u1",
"0.15.0+dfsg-1",
"0.16.1+dfsg-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48822.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #57182 · Revision 1
- Added to Heist Feed
- Publisher date