CVE-2023-21564 — Azure DevOps Server Cross-Site Scripting Vulnerability

Azure DevOps Server Cross-Site Scripting Vulnerability

01What is this vulnerability?

Azure DevOps Server Cross-Site Scripting Vulnerability

02Affected products

No structured affected-product list available — see references below for vendor advisories.

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: 2023-02-14T20:15:11.830
• Last modified: 2026-08-19T17:18:06.157

09References

• msrc.microsoft.com — https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21564
• msrc.microsoft.com — https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21564