Jinja vulnerable to Cross-Site Scripting (XSS)
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.4epss 0.9%
exploitation probability
0.9%top 44% of all CVEs
observed exploitation
nono source reports it
Jinja is an extensible templating engine. Special placeholders in the template allow writing code similar to Python syntax. It is possible to inject arbitrary HTML attributes into the rendered HTML template, potentially leading to Cross-Site Scripting (XSS). The Jinja `xmlattr` filter can be abused to inject arbitrary HTML attribute keys and values, bypassing the auto escaping mechanism and potentially leading to XSS. It may also be possible to bypass attribute validation checks if they are blacklist-based.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Affected products
pallets · jinjaReferences
https://github.com/pallets/jinja/releases/tag/3.1.3https://github.com/pallets/jinja/security/advisories/GHSA-h5c8-rqwp-cp95https://lists.debian.org/debian-lts-announce/2024/01/msg00010.htmlhttps://lists.debian.org/debian-lts-announce/2024/12/msg00009.htmlhttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5XCWZD464AJJJUBOO7CMPXQ4ROBC6JX2/https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DELCVUUYX75I5K4Q5WMJG4MUZJA6VAIP/https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O7YWRBX6JQCWC2XXCTZ55C7DPMGICCN3/