Shaarli allows reflected XSS via searchtags parameter
Priority MEDIUM 64CWE-79Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00234 14th percentileScored 2026-11-07
Fix Fixed Shaarli (shaarli): 0.15.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Shaarli (shaarli) Fixed in 0.15.0
Timeline
- 2026-10-02 Threatist record created from CVE-2025-55291
References
More shaarli vulnerabilities
- TI-2026-36949 Shaarli vulnerable to stored XSS via raw bookmark title in document <title> element on public permalink page CVSS 4.0HIGH 8.6
- TI-2026-36091 Shaarli has Stored Cross-Site Scripting (XSS) via Markdown Reference Links CVSS 3.1MEDIUM 5.8
- TI-2026-73442 Server-side request forgery in Shaarli thumbnail retrieval CVSS 4.0MEDIUM 5.1
- TI-2026-36092 Shaarli has Stored Cross-Site Scripting (XSS) via Tags Search CVSS 3.1MEDIUM 4.8
- TI-2026-36090 Shaarli: DOM-based Cross-Site Scripting (XSS) in Thumbnail Synchronizer CVSS 3.1MEDIUM 5.8
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences