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CVE-2025-47776

Mantisbt vulnerability

9.1 CRITICALEPSS 0.34%
  1. Published4 Nov 2025

Description

Mantis Bug Tracker (MantisBT) is an open source issue tracker. Due to incorrect use of loose (==) instead of strict (===) comparison in the authentication code in versions 2.27.1 and below.PHP type juggling will cause certain MD5 hashes matching scientific notation to be interpreted as numbers. Instances using the MD5 login method allow an attacker who knows the victim's username and has access to an account with a password hash that evaluates to zero to log in without knowing the victim's actual password, by using any other password with a hash that also evaluates to zero This issue is fixed in version 2.27.2.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

Mantisbt< 2.27.2

Remediation

Fixed in
Mantisbt≥ 2.27.2

References

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Frequently asked

Is CVE-2025-47776 being actively exploited?

CVE-2025-47776 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.34%.

How severe is CVE-2025-47776?

CVE-2025-47776 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 0.34% probability of exploitation.

Which products are affected by CVE-2025-47776?

Affected products include Mantisbt.

How do I fix CVE-2025-47776?

Upgrade affected software to a fixed version, for example Mantisbt 2.27.2 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-47776 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.