Vulnerability in simplepie

[ Why it matters ]Priority signals

• Public proof-of-concept exploit exists (CISA SSVC)

[ Description ]Official description

SimplePie through 1.9.0 contains a local file read vulnerability that allows malicious feed servers to read server files by supplying file:// URLs in redirects or autodiscovery links. Attackers can return a Location header or feed link pointing to a file:// path, causing file_get_contents() to read files accessible to the web server process.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• github.com/abraxas/pfsense-rss-file-redirect
• github.com/simplepie/simplepie
• github.com/simplepie/simplepie/blob/76cccb1b2c5dcaf44f304c925ab30c0f48643992/src/File.php
• github.com/simplepie/simplepie/blob/76cccb1b2c5dcaf44f304c925ab30c0f48643992/src/File.php
• github.com/simplepie/simplepie/blob/76cccb1b2c5dcaf44f304c925ab30c0f48643992/src/HTTP/P…
• github.com/simplepie/simplepie/issues/968
• github.com/simplepie/simplepie/pull/991
• www.vulncheck.com/advisories/simplepie-through-1.9.0-local-file-read-via-file-redirect