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01 Record

CVE-2026-54506

Vvveb: Stored XSS via sanitizeHTML() bypass in user profile bio field

HighPUBLISHEDCNA: GitHub_M
CNA base score7.6 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N

02 Description

Vvveb: Stored XSS via sanitizeHTML() bypass in user profile bio field

03 Exploitation and scoring

Exploitation
Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
SSVC decision
  • ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.35% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 28.3% of scored records. A rank, not a probability.
NVD base score
7.6 (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:C/C:H/I:L/A:N
NVD analysis status
Deferred. NVD last modified this record on 2026-09-23.
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
2026-09-17 21:47Z1 MO AGO
Last updated
2026-09-23 19:09Z1 MO AGO
Reserved
2026-06-15
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
High (CVSS 7.6)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
Weaknesses
  • CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base
  • CWE-116Improper Encoding or Escaping of OutputClass
  • CWE-185Incorrect Regular ExpressionClass
Data version
5.2
Document digest
19908c07a8af57ac57794e8aa791a1e3e6159a3067bd577940dc27d0243a686e

05 Affected products

VendorProductVersionsPlatforms
givanzVvveb< 1.0.8.5—

06 References