Year: 2026

MantisBT 2.28.4 released

Maintenance and Security release addressing a critical authentication bypass vulnerability in the SOAP API (CVE-2026-47156) as well as 7 other vulnerabilities including SQL injection, remote code execution, Cross-site scripting, missing authorisation and improper input validation issues. This release also fixes a few bugs, including a regression introduced in 2.28.2.

Please refer to the Change Log for complete details. Full public disclosure of the security issues is expected to take place on July 6th.

We would like to thank the researchers who identified, responsibly disclosed and helped us fix the security issues: McCaulay Hudson (_mccaulay) of watchTowr, Keitaro Yamazaki (tyage), Harrison Keating (voraci0us), Chandler Johnson (chndlrx) and Bharat Devasani (bharatdevasani), Vishal Shukla (shukla304), Mamdouh Mahfouz (mamdouhmahfouz), Psalms Christopher Matovu (@byteoverride) and Dracosec Research Limited.

All installations are advised to upgrade as soon as possible.

Go ahead and download the release from our website.

In order to stay up to date with the latest MantisBT news, please star our GitHub repository, join our Gitter channel, or follow us on X or Mastodon and retweet to spread the word!

Critical Security Issue in MantisBT <= 2.28.3

A critical vulnerability (CVE-2026-47156) has been identified in MantisBT 2.28.3 and earlier releases.

It will be fixed in Version 2.28.4, together with several other security issues, and will be available on Wednesday, July 1st 2026, around 12:00 UTC. Be ready to patch your system right away ! All installations are advised to upgrade as quickly as possible.

Considering the issue’s nature and high severity, we are publishing this advance notice to inform administrators so they can plan ahead and patch their systems before complete details about the issue become available to the general public, in the hope that exposed systems are updated before the vulnerability can be exploited. Full disclosure is expected to take place on July 6th.

We would like to thank McCaulay Hudson of watchTowr for originally identifying and responsibly reporting the issue.

The vulnerability was subsequently discovered by other researchers, while we were working on fixing it and preparing the release. We credit them here, in chronological order of their reports: Keitaro Yamazaki (tyage), Harrison Keating (voraci0us), Chandler Johnson (chndlrx) and Bharat Devasani (bharatdevasani).

MantisBT 2.28.3 released

This is a hotfix release, addressing a regression in the reauthentication flow introduced in 2.28.2. Please refer to the Change Log for complete details.

Thanks to Dominik Pesch for reporting the issue and providing a patch to fix it.

All installations are advised to upgrade as soon as possible.

Go ahead and download the release from our website.

In order to stay up to date with the latest MantisBT news, please star our GitHub repository, join our Gitter channel, or follow us on X or Mastodon and retweet to spread the word!

MantisBT 2.28.2 released

This is an important security release, addressing over 15 vulnerabilities. It also fixes a few bugs and regression issues, and improves PHP 8.5 compatibility.

Please refer to the Change Log for complete details.

We would like to thank the researchers who identified, responsibly disclosed and helped us fix the security issues: Vishal Shukla (ninjasec), Dracosec Research Limited, Nozomu Sasaki (morimori-dev) and Tang Cheuk Hei (siunam).

All installations are advised to upgrade as soon as possible.

Go ahead and download the release from our website.

In order to stay up to date with the latest MantisBT news, please star our GitHub repository, join our Gitter channel, or follow us on X or Mastodon and retweet to spread the word!

End of PHP 7 support

PHP 7.4 reached end-of-life on November 22nd 2022, and it is becoming increasingly difficult for us to maintain compatibility as most libraries and tools stopped supporting it.

Consequently, the upcoming MantisBT release 2.29.0 will drop support for PHP 7.4 and 8.0, increasing the minimum supported version to 8.1.

This follows our customary practice to align our PHP requirements with the version bundled in the oldest available Ubuntu LTS release that is still under standard maintenance, currently 22.04 Jammy Jellyfish.

While official PHP 8.1 support ended on December 31st 2025, the Ubuntu team is committed to maintain it for the lifetime of the 22.04 LTS release. Nevertheless, we recommend running a fully supported PHP version, i.e. 8.4 or later as of this writing.