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CVE-2026-4313Stored XSS in AdaptiveGRC

Description

AdaptiveGRC is vulnerable to Stored XSS via text type fields across the forms. Authenticated attacker can replace the value of the text field in the HTTP POST request. Improper parameter validation by the server results in arbitrary JavaScript execution in the victim's browser. Critically, this may allow the attacker to obtain the administrator authentication token and perform arbitrary actions with administrative privileges, which could lead to further compromise. This issue occurs in versions released before December 2025.

Timeline

  1. ID reserved

    By CERT-PL

  2. · 38 days later

    Published

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2026-4313, by who scored it
Scored byCVSSScoreVector
CERT-PLCNA (assigner)4.0Low2.4CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N
NVDNVD · Deferred4.0Low2.4CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:L/SI:L/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
EPSS (exploitation in 30 days)
0.59% · top 51% of all CVEs (14 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 2.4.

Affected products

  • C&F · AdaptiveGRC

    • affected 5.420.00 – < 5.420.66
    • affected 5.420.00 – < 5.444.119
    • affected 5.420.00 – < 5.448.116
    • affected 5.420.00 – < 5.453.110
    • affected 5.420.00 – < 5.454.64
    • affected 5.420.00 – < 5.455.87
    • affected 5.420.00 – < 5.456.60
    • affected 5.420.00 – < 5.499.113

  • C&F · AdaptiveGRC

    • affected 5.420.00 – < 5.420.14
    • affected 5.420.00 – < 5.423.7
    • affected 5.420.00 – < 5.444.20
    • affected 5.420.00 – < 5.448.42
    • affected 5.420.00 – < 5.449.40
    • affected 5.420.00 – < 5.453.19
    • affected 5.420.00 – < 5.454.17
    • affected 5.420.00 – < 5.456.20

References

References2

Sources

The same CVE in the primary databases and aggregators, to check against.

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[![CVE-2026-4313](https://cveledger.app/badge/CVE-2026-4313.svg)](https://cveledger.app/cve/CVE-2026-4313)

Record last updated .