PT-2021-23004 · Unknown · Projectsend

Kietna-68 · Published 2021-10-11 · Updated 2021-10-18 · CVE-2021-40887

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Projectsend version r1295

Description The issue is related to a directory traversal vulnerability. Due to a lack of sanitization for the files[] parameter, an attacker can exploit this by adding ../ to move PHP files or any file on the system with permissions to the /upload/files/ folder.

Recommendations For Projectsend version r1295, consider restricting access to the files[] parameter to prevent directory traversal attacks until a patch is available. As a temporary workaround, avoid using the files[] parameter in the affected API endpoint until the issue is resolved.

Exploit

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2021-40887

Affected Products

Projectsend

References · 5

• 🔥 https://github.com/projectsend/projectsend/issues/994 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-40887 · Security Note
• https://osv.dev/vulnerability/CVE-2021-40887 · Vendor Advisory
• https://t.me/cvenotify/22254 · Telegram Post
• https://t.me/cibsecurity/30328 · Telegram Post