Vulnerability · Published Oct 2, 2026 · Assigned by VulnCheck

CVE-2026-104991Phproject < 1.8.7 Missing Authorization via Issues REST API

High 7.1

In plain English

A high-severity missing authorization in phproject from Alanaktion. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 25% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.

Severity (CVSS 3.1)7.1High

Exploit odds (30 days)0.3%top 75.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack tooling1Public PoC

Official description

Phproject before 1.8.7 contains a missing object-level authorization vulnerability in the REST API issue endpoints (single_get, single_comments, single_comments_post) that allows authenticated API key holders to bypass the security.restrict_access confidentiality control by never invoking the allowAccess() authorization routine. Attackers can use a valid API key to read restricted issue contents and comments, including owner and author email addresses, and post unauthorized comments to issues they should not have access to.

Affected products (as reported)

Vendor	Product	Versions
Alanaktion	phproject	1.1.6 – before 1.8.7

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

References

GitHub Security Advisory (GHSA-mpq9-v47x-3hw8) vendor-advisory, technical-description
Phproject v1.8.7 Release Notes release-notes
VulnCheck Advisory third-party-advisory