CVSS 3.1
5.4 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NCVE-2021-31330
Medium (5.4) in reviewboard review board. EPSS 0.8% chance of exploitation in the next 30 days.
A Cross-Site Scripting (XSS) vulnerability exists within Review Board versions 3.0.20 and 4.0 RC1 and earlier. An authenticated attacker may inject malicious Javascript code when using Markdown editing within the application which remains persistent.
Severity
- EPSS
- 0.8% chance of exploitation in the next 30 days; higher than 57% of CVEs (scores of 2026-10-31)
- CWE
- CWE-79
- Published
- Modified
- Record from
- the NVD, synced
Affected
- reviewboard:review_board
References
- https://mattschmidt.net/2021/04/14/review-board-xss-discovered/
- https://www.reviewboard.org/docs/releasenotes/reviewboard/3.0.21/
- https://www.reviewboard.org/docs/releasenotes/reviewboard/4.0-rc-2/
- https://www.reviewboard.org/news/2021/04/14/review-board-3-0-21-and-4-0-rc-2-security-bug-fixes-and-docker/
- https://mattschmidt.net/2021/04/14/review-board-xss-discovered/