CVE-2019-15848 — JetBrains TeamCity 2019

JetBrains TeamCity 2019.1 and 2019.1.1 allows cross-site scripting (XSS), potentially making it possible to send an arbitrary HTTP request to a TeamCity server under the name of the currently logged-in user.

01What is this vulnerability?

JetBrains TeamCity 2019.1 and 2019.1.1 allows cross-site scripting (XSS), potentially making it possible to send an arbitrary HTTP request to a TeamCity server under the name of the currently logged-in user.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

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: 2019-09-05T19:38:45.000Z
• Last modified: 2024-08-05T01:03:30.905Z

09References

• blog.jetbrains.com — https://blog.jetbrains.com/teamcity/2019/09/important-security-notice-xss-vulner…
• twitter.com — https://twitter.com/JLLeitschuh/status/1169332316612644864?s=20
• www.softwaresecured.com — https://www.softwaresecured.com/jetbrains-teamcity-reflected-xss/
• gist.github.com — https://gist.github.com/JLLeitschuh/fe6784391254b58de680bbda78a04a70