Is CVE-2026-42070 actively exploited?

No active exploitation of CVE-2026-42070 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-42070 be exploited remotely?

Yes. CVE-2026-42070 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-42070?

CVE-2026-42070 has a CVSS score of 5.3 (MEDIUM).

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MEDIUM

CVE-2026-42070

CWE-863Published: May 28, 2026· Updated: May 29, 2026

5.3

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:11.9th

Official Description

Mantis Bug Tracker (MantisBT) is an open source issue tracker. Prior to 2.28.2, the mc_issue_update() function in MantisBT allows users having update_bug_threshold access (UPDATER, with default settings) to edit, change view state, and modify time tracking on bugnotes belonging to other users — bypassing the default DEVELOPER (level 55) threshold required by the dedicated mc_issue_note_update() function. This vulnerability is fixed in 2.28.2.

NVD Source

Technical Analysis

CVE-2026-42070 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.Low

User InteractionNone

ScopeX

Impact

Confidentiality

Integrity

Availability

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X