Description
SPIP before 4.4.5 and 4.3.9 allows an Open Redirect via the login form when used in AJAX mode. An attacker can craft a malicious URL that, when visited by a victim, redirects them to an arbitrary external site after login. This vulnerability only affects sites where the login page has been overridden to function in AJAX mode. It is not mitigated by the SPIP security screen.
Scores
CVSS v3
6.1
EPSS
0.0004
EPSS Percentile
10.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-601
Status
published
Products (1)
spip/spip
4.3.0 - 4.3.9
Published
Feb 19, 2026
Tracked Since
Feb 19, 2026