01 Record
CVE-2026-73426
Trix: Stored XSS vulnerability through serialized attributes
MediumPUBLISHEDCNA: GitHub_M
CNA base score4.6 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
02 Description
Trix: Stored XSS vulnerability through serialized attributes
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.32% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 24.7% of scored records. A rank, not a probability.
- NVD base score
- 4.6 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
- NVD analysis status
- Deferred. NVD last modified this record on 2026-10-22.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-08-18 14:24Z2 MO AGO
- Last updated
- 2026-08-18 17:47Z2 MO AGO
- Reserved
- 2026-08-12
- Assigning CNA
- GitHub_M
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 4.6)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
- Weaknesses
- CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base
- Data version
- 5.2
- Document digest
- 74adc344688f750200e7d4aff014b98f572ce7c21bb74274c283d6afa334a4ca
05 Affected products
VendorProductVersionsPlatforms
06 References
- github.comhttps://github.com/basecamp/trix/security/advisories/GHSA-qmpg-8xg6-ph5q
- github.comhttps://github.com/basecamp/trix/pull/1282
- github.comhttps://github.com/basecamp/trix/commit/3229c29c771ded4d247ed79b2ccd2cd05c4e74b4
- github.comhttps://github.com/basecamp/trix/commit/53197ab5a142e6b0b76127cb790726b274eaf1bc
- github.comhttps://github.com/basecamp/trix/releases/tag/v2.1.17