01 Record
CVE-2026-54503
plone.app.textfield: Stored XSS by spoofing mime type
MediumPUBLISHEDCNA: GitHub_M
CNA base score4.3 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
02 Description
plone.app.textfield: Stored XSS by spoofing mime type
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
- 0.40% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 34.0% of scored records. A rank, not a probability.
- NVD base score
- 4.3 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- NVD analysis status
- Awaiting Analysis. NVD last modified this record on 2026-09-30.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
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
- 2026-09-15 16:38Z1 MO AGO
- Last updated
- 2026-09-15 19:02Z1 MO AGO
- Reserved
- 2026-06-15
- Assigning CNA
- GitHub_M
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 4.3)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- Weaknesses
- CWE-80Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)Variant
- Data version
- 5.2
- Document digest
- 202ebf16fee39ff175b0c810dd03377e0e903f9ba23764ea315de19d209e6af7
05 Affected products
VendorProductVersionsPlatforms
06 References
- github.comhttps://github.com/plone/plone.app.textfield/security/advisories/GHSA-4r4f-gg25-rmg5
- github.comhttps://github.com/plone/plone.app.textfield/commit/0da1aeec2406cf640977eb857a03e792d2c7cac2
- github.comhttps://github.com/plone/plone.app.textfield/commit/467638e500d804c637031387a227a2b02d12a86f
- github.comhttps://github.com/plone/plone.app.textfield/commit/781d517a38524087fe57525a94806684908f852f