Stored Cross-Site Scripting Vulnerability in SPIP by SPIP Team
CVE-2026-27473

5.1MEDIUM

Key Information:

Vendor

Spip

Status
Spip
Vendor
CVE Published:
19 February 2026

What is CVE-2026-27473?

The vulnerability in SPIP allows attackers to exploit the platform through poorly sanitized outputs in the private area, specifically on pages displaying syndicated sites. When administrators access details of these syndicated sites, malicious scripts embedded in syndication URLs can execute without their consent, posing a significant risk to the integrity and confidentiality of the site. It is crucial for users operating versions prior to 4.4.9 to apply the latest security updates to mitigate this threat.

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Deploy the Patch

Affected Version(s)

SPIP 4.4.0 < 4.4.9

References

https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-S...
vendor-advisorypatch
https://git.spip.net/spip/spip
product
https://www.vulncheck.com/advisories/spip-stored-cross-si...
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Dorian Piette (Trachinus)
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