CVE-2019-0870 — A Cross-site Scripting (XSS) vulnerability exists when Azure DevOps Server and T

A Cross-site Scripting (XSS) vulnerability exists when Azure DevOps Server and Team Foundation Server do not properly sanitize user provided input, aka 'Azure DevOps Server and Team Foundation Server Cross-site Scripting Vulnerability'. This CVE ID is unique from CVE-20

01What is this vulnerability?

A Cross-site Scripting (XSS) vulnerability exists when Azure DevOps Server and Team Foundation Server do not properly sanitize user provided input, aka 'Azure DevOps Server and Team Foundation Server Cross-site Scripting Vulnerability'. This CVE ID is unique from CVE-2019-0866, CVE-2019-0867, CVE-2019-0868, CVE-2019-0871.

02Affected products

Vendor	Product	Versions
Microsoft	Team Foundation Server	2017 Update 3.1
Microsoft	Team Foundation Server 2018	Update 1.2, Update 3.2
Microsoft	Azure DevOps Server	2019

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

08Timeline

• Published: 2019-04-09T20:20:34.000Z
• Last modified: 2024-08-04T17:58:59.581Z

09References

• portal.msrc.microsoft.com — https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0870
• www.securityfocus.com — http://www.securityfocus.com/bid/107754