MEDIUMCVSS v3.1 4.7Vulnerability
CVE-2026-115351
Mistune from 3.2.1 before 3.3.0 contains a CSS injection vulnerability that allows attackers controlling markdown input to inject arbitrary style declarations via the unvalidated figwidth option of the figure directive. Attackers can append declarations like background:url() to the rendered figure style attribute, forcing victim browsers to send requests to attacker servers and leak attribute values.
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-10-22T22:14:18.200859+00:00
- Cvss score
- 4.7
- Cvss severity
- MEDIUM
- Retrieved at
- 2026-10-22T22:16:40+00:00
- Score
- 4.7
- Last source
- NVD
- Cvss version
- 3.1
- Cve id
- CVE-2026-115351
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
- First seen by Signal
- 2026-10-22T22:12:23+00:00
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
- Published at
- 2026-10-22T19:17:40.920
- Last modified
- 2026-10-22T19:17:41.033
Related Entities (1)
HAS_WEAKNESS (1)
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