CVE-2026-93873

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

0.19% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 8.1% of scored records. A rank, not a probability.

NVD base score

5.3 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Deferred. NVD last modified this record on 2026-09-22.

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.

Published

2026-09-18 19:56Z1 MO AGO

Last updated

2026-09-24 14:23Z1 MO AGO

Reserved

2026-09-18

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Weaknesses

• CWE-352Cross-Site Request Forgery (CSRF)Compound

Data version

5.2

Document digest

df5b9fc52da55874784c664d4cdfcdf3537d984eaa94c8543d83c302e7744939

• github.comhttps://github.com/Cotonti/Cotonti/issues/1895issue-tracking
• github.comhttps://github.com/Cotonti/Cotonti/pull/1903patchissue-tracking
• github.comhttps://github.com/Cotonti/Cotonti/blob/1.0.0/plugins/contact/contact.phptechnical-description
• github.comhttps://github.com/Cotonti/Cotontiproduct
• www.vulncheck.comVulnCheck Advisory: Cotonti through 1.0.0 Cross-Site Request Forgery in the Contact Pluginhttps://www.vulncheck.com/advisories/cotonti-through-1.0.0-cross-site-request-forgery-in-the-contact-pluginthird-party-advisory