← Vulnerability feed

Vulnerability record · CVE-2020-35849 · published 30 December 2020

CVE-2020-35849: Mantisbt insecure direct object reference vulnerability

Mantisbt · Mantisbt

An issue was discovered in MantisBT before 2.24.4. An incorrect access check in bug_revision_view_page.php allows an unprivileged attacker to view the Summary field of private issues, as well as bugnotes revisions, gaining access to potentially confidential information via the bugnote_id parameter.

7.5 CVSS 3.1 High EPSS 1.6% · top 24.6% CWE-639 · Insecure direct object reference
7.5CVSS 3.1 base score, v2 5.0
1.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

An issue was discovered in MantisBT before 2.24.4. An incorrect access check in bug_revision_view_page.php allows an unprivileged attacker to view the Summary field of private issues, as well as bugnotes revisions, gaining access to potentially confidential information via the bugnote_id parameter.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://mantisbt.org/bugs/view.php?id=27370 ExploitIssue TrackingVendor Advisory
https://mantisbt.org/bugs/view.php?id=27370 ExploitIssue TrackingVendor Advisory

Track CVE-2020-35849 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.6CVE-2019-15074Mantisbt cross-site scripting vulnerabilityThe Timeline feature in my_view_page.php in MantisBT through 2.21.1 has a stored cross-site scripting (XSS) vulnerability, allowing execution of arbi…EPSS 2.1%9.3CVE-2026-30849Mantisbt vulnerabilityMantis Bug Tracker (MantisBT) is an open source issue tracker. Versions prior to 2.28.1 running on MySQL family databases are affected by an authenti…EPSS 2.4%8.8CVE-2025-47776Mantisbt vulnerabilityMantis Bug Tracker (MantisBT) is an open source issue tracker. Due to incorrect use of loose (==) instead of strict (===) comparison in the authentic…EPSS 0.34%8.8CVE-2017-7615MantisBT weak password reset allows unauthenticated admin accessMantisBT through 2.3.0 mishandles password reset confirmation, allowing an attacker to supply an empty confirm_hash value to verify.php. This permits…EPSS 91%analysed8.6CVE-2026-33548Mantisbt cross-site scripting vulnerabilityMantis Bug Tracker (MantisBT) is an open source issue tracker. In version 2.28.0, improper escaping of tag names retrieved from History in Timeline (…EPSS 0.29%8.6CVE-2026-33517Mantisbt cross-site scripting vulnerabilityMantis Bug Tracker (MantisBT) is an open source issue tracker. In version 2.28.0, when deleting a Tag (tag_delete.php), improper escaping of its name…EPSS 0.35%8.3CVE-2024-23830Mantisbt injection vulnerabilityMantisBT is an open source issue tracker. Prior to version 2.26.1, an unauthenticated attacker who knows a user's email address and username can hija…EPSS 0.96%8.1CVE-2009-20001Mantisbt insufficient session expiration vulnerabilityAn issue was discovered in MantisBT before 2.24.5. It associates a unique cookie string with each user. This string is not reset upon logout (i.e., t…EPSS 0.87%

Source: NIST National Vulnerability Database (record CVE-2020-35849), CISA KEV, FIRST EPSS (scores of 2026-10-10). This page is refreshed as NVD updates the record.