CVE-2025-55291

Shaarli allows reflected XSS via searchtags parameter

7.1 HighFix available

Shaarli is a minimalist bookmark manager and link sharing service. Prior to 0.15.0, the input string in the cloud tag page is not properly sanitized. This allows the </title> tag to be prematurely closed, leading to a reflected Cross-Site Scripting (XSS) vulnerability. This vulnerability is fixed in 0.15.0.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: None

Exploit likelihood

0.23%Up 0.2 points since Aug 19, 2025

What each source reports

CVE List Score used 7.1

Shaarli allows reflected XSS via searchtags parameter

Record: CVE-2025-55291
CVSS 3.1: 7.1 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Weakness: CWE-80, CWE-87, CWE-79
Updated: 2026-11-02

EUVDEUVD-2025-28587 7.1

Record: EUVD-2025-28587
CVSS 3.1: 7.1 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Updated: 2026-11-02

NVD 7.1

Record: CVE-2025-55291
CVSS 3.1: 7.1 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Weakness: CWE-79, CWE-80, CWE-87
Updated: 2026-11-02

OSV 7.1

Shaarli allows reflected XSS via searchtags parameter

Record: CVE-2025-55291
CVSS 3.1: 7.1 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Weakness: CWE-79, CWE-80, CWE-87
Updated: 2026-11-02

OSVDEBIAN-CVE-2025-55291 7.1

Record: DEBIAN-CVE-2025-55291
CVSS 3.1: 7.1 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Updated: 2026-11-02

OSVUBUNTU-CVE-2025-55291 7.1

Record: UBUNTU-CVE-2025-55291
CVSS 3.1: 7.1 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Updated: 2026-11-02

Affected products

shaarli

Affected packages

Affected packages
Package	Affected	Fixed
`shaarli` Debian:12	before 0.12.1+dfsg-8+deb12u1, plus listed versions 0.12.1+dfsg-8	0.12.1+dfsg-8+deb12u1
`shaarli` Debian:13	before 0.14.0+dfsg-2, plus listed versions 0.14.0+dfsg-1	0.14.0+dfsg-2
`shaarli` Ubuntu:16.04:LTS	All versions, plus listed versions 0.0.42~beta~dfsg1-20.0.42~beta~dfsg1-2ubuntu1	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-55291 is a high vulnerability (CVSS 7.1) in Shaarli, published August 18, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.23%, the 14th percentile. Fixed in shaarli 0.12.1+dfsg-8+deb12u1.