Medium severity · published Aug 19, 2026
CVE-2026-53654
Grav: Unauthenticated open redirect via login twofa_cancel _redirect
5.3
CVSS
0.5%
EPSS
No
On KEV
Description
Grav is a file-based Web platform. Prior to 3.8.5, the Login plugin twofa_cancel task accepts a client-controlled _redirect field without a nonce and allows an unauthenticated request to set an external http, https, or protocol-relative Location target. Controller::execute() applies the field when taskTwofa_cancel() sets no redirect, and Grav::getRedirectResponse() accepts the target through Uri::isExternal(), enabling phishing redirects from a trusted Grav host. This issue is fixed in version 3.8.5.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 44% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GR
grav · getgrav
< 3.8.5 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-53654
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-53654
github.com
https://github.com/getgrav/grav-plugin-login/commit/1535e51d2a9cbc3f1bb1e262e791c142a06ce959
github.com
https://github.com/getgrav/grav-plugin-login/releases/tag/3.8.5
github.com
https://github.com/getgrav/grav/security/advisories/GHSA-wwcc-xxhc-44j6
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