CVE-2019-16393 — SPIP before 3

SPIP before 3.1.11 and 3.2 before 3.2.5 mishandles redirect URLs in ecrire/inc/headers.php with a %0D, %0A, or %20 character.

01What is this vulnerability?

SPIP before 3.1.11 and 3.2 before 3.2.5 mishandles redirect URLs in ecrire/inc/headers.php with a %0D, %0A, or %20 character.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2019-09-17T20:48:04.000Z
• Last modified: 2024-08-05T01:17:39.423Z

09References

• blog.spip.net — https://blog.spip.net/Mise-a-jour-CRITIQUE-de-securite-Sortie-de-SPIP-3-2-5-et-S…
• core.spip.net — https://core.spip.net/issues/4362
• git.spip.net — https://git.spip.net/SPIP/spip/commit/0b832408b0aabd5b94a81e261e9413c0f31a19f1
• seclists.org — https://seclists.org/bugtraq/2019/Sep/40
• www.debian.org — https://www.debian.org/security/2019/dsa-4532
• lists.debian.org — https://lists.debian.org/debian-lts-announce/2019/10/msg00038.html
• usn.ubuntu.com — https://usn.ubuntu.com/4536-1/