CVE-2023-2817 — A post-authentication stored cross-site scripting vulnerability exists in Craft

A post-authentication stored cross-site scripting vulnerability exists in Craft CMS versions <= 4.4.11. HTML, including script tags can be injected into field names which, when the field is added to a category or section, will trigger when users visit the Categories or Entries

01What is this vulnerability?

A post-authentication stored cross-site scripting vulnerability exists in Craft CMS versions <= 4.4.11. HTML, including script tags can be injected into field names which, when the field is added to a category or section, will trigger when users visit the Categories or Entries pages respectively.

02Affected products

Vendor	Product	Versions
n	a / Craft CMS	versions prior or equal to version 4.4.11

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-05-26T00:00:00.000Z
• Last modified: 2025-01-15T15:48:32.510Z

09References

• www.tenable.com — https://www.tenable.com/security/research/tra-2023-20%2C
• github.com — https://github.com/craftcms/cms/commit/7655e1009ba6cdbfb230e6bb138b775b69fc7bcb