Slim vulnerable to PHP object injection

HIGH 7.5CVE-2015-2171 · GHSA-74mf-vjpg-9xh7 · Published 30/03/2015 · updated 17/06/2026

In short

CVE-2015-2171 is a HIGH (CVSS 7.5) vulnerability affecting slim/slim, slim (slimframework).
Chance of exploitation in the next 30 days (EPSS): 2.5%, higher than 84.8% of all vulnerabilities.
Fix: update to 2.6.0 or later.

Package	Affected versions	Patched versions
slim/slim Packagist	`< 2.6.0`	`2.6.0`
slim slimframework	`≤ 2.5.0`	No fix yet

Description

Middleware/SessionCookie.php in Slim before 2.6.0 allows remote attackers to conduct PHP object injection attacks and execute arbitrary PHP code via crafted session data.

NVD description

Middleware/SessionCookie.php in Slim before 2.6.0 allows remote attackers to conduct PHP object injection attacks and execute arbitrary PHP code via crafted session data.

References

nvd.nist.gov/vuln/detail/CVE-2015-2171 · ADVISORY
slimphp/Slim · WEB
slimphp/Slim commit 9fa6514 · WEB
FriendsOfPHP/security-advisories · WEB
slimphp/Slim · PACKAGE
web.archive.org/web/20200229032229/http://www.securityfocus.com/bid/70087 · WEB
seclists.org/fulldisclosure/2015/Mar/16 · WEB
slimframework.com/2015/03/01/version-260.html · WEB
securityfocus.com/bid/70087

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