PT-2025-51971 · Unknown · Serendipity

Mirabbas Ağalarov · Published 2025-12-17 · Updated 2025-12-24 · CVE-2023-53933

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Serendipity version 2.4.0

Description An authenticated attacker can upload malicious PHP files with a .phar extension, leading to remote code execution. Attackers can upload files containing system command payloads to the media upload endpoint and execute arbitrary commands on the server.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

RCE

Unrestricted File Upload

Weakness Enumeration

CWE-434

Related Identifiers

CVE-2023-53933

Affected Products

Serendipity

References · 10

• 🔥 https://vulncheck.com/advisories/serendipity-authenticated-remote-code-execution-via-file-upload · Exploit
• 🔥 https://exploit-db.com/exploits/51372 · Exploit
• https://osv.dev/vulnerability/CVE-2023-53933 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-53933 · Security Note
• https://twitter.com/CVEnew/status/2002487773107028055 · Twitter Post
• https://docs.s9y.org · Note
• https://t.me/CVEtracker/40089 · Telegram Post
• https://twitter.com/VulmonFeeds/status/2001639183031365771 · Twitter Post
• https://t.me/cveNotify/146775 · Telegram Post
• https://twitter.com/CveFindCom/status/2001437139196674112 · Twitter Post