# Craft CMS Potential Remote Code Execution via Twig SSTI

Advisory record · `GHSA-crcq-738g-pqvc`

- **Identifiers:** `GHSA-crcq-738g-pqvc` · `CVE-2025-57811` · `PKSA-cbq7-fhfn-fyt5`
- **State:** Confirmed
- **Severity:** CVSS 6.1 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-22](https://cwe.mitre.org/data/definitions/22.html) · [CWE-94](https://cwe.mitre.org/data/definitions/94.html) · [CWE-1336](https://cwe.mitre.org/data/definitions/1336.html)
- **Tags:** [Path traversal](https://agentprime.io/advisories/tag/path-traversal.md) · [Code injection](https://agentprime.io/advisories/tag/code-injection.md)
- **Published:** 25 Aug 2025
- **Updated:** 27 Nov 2025
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 25 Aug 2025, 20:42 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `craftcms/cms` (Packagist): affected `>=4.0.0-RC1, <4.16.6 || >=5.0.0-RC1, <5.8.7`; fixed in `4.16.6`, `5.8.7`

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> Craft CMS (craftcms/cms) versions from 4.0.0-RC1 before 4.16.6 and from 5.0.0-RC1 before 5.8.7 are vulnerable to a Twig server-side template injection that may lead to remote code execution. An attacker would need administrator access to the Control Panel, with allowAdminChanges enabled, which Craft CMS advises against in non-development environments. Upgrade to 4.16.6 or 5.8.7, or later.

Written 3 Nov 2026.

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 6.1 Medium, CVSS 4.0: `CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.010, the 63rd percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:26 UTC: First seen by agentprime
- 31 Oct 2026, 14:26 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-crcq-738g-pqvc)

## Sources

- [GitHub Advisory Database: GHSA-crcq-738g-pqvc](https://github.com/advisories/GHSA-crcq-738g-pqvc)
- [OSV: GHSA-crcq-738g-pqvc](https://osv.dev/vulnerability/GHSA-crcq-738g-pqvc)
- <https://github.com/craftcms/cms/security/advisories/GHSA-crcq-738g-pqvc>
- <https://github.com/craftcms/cms/security/advisories/GHSA-f3cw-hg6r-chfv>
- <https://nvd.nist.gov/vuln/detail/CVE-2025-57811>
- <https://github.com/craftcms/cms/pull/17612>
- <https://github.com/craftcms/cms/commit/e77f8a287dcdda41f1724f525d03542f18566cbc>
- <https://github.com/craftcms/cms>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-crcq-738g-pqvc>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-crcq-738g-pqvc/>. Everything for agents: <https://agentprime.io/llms.txt>.