CVE-2025-55155Network attack vector

Notification disclosure via unverified email changes

Published Nov 4, 2025 · Updated Nov 4, 2025

Improper email verification in MantisBT 2.27.1 and earlier allows remote authenticated users to redirect account notifications. The account_update.php profile handler passes a changed email address directly to user_set_email() without proving control; the patch instead stores it in a token and commits it only after a verification link is followed. Any authenticated account can supply an invalid or third-party address, disrupting its own notifications and disclosing notification contents to whoever controls that address.

CVSS severity5.4
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper email verification in MantisBT 2.27.1 and earlier allows remote authenticated users to redirect account notifications. The account_update.php profile handler passes a changed email address directly to user_set_email() without proving control; the patch instead stores it in a token and commits it only after a verification link is followed. Any authenticated account can supply an invalid or third-party address, disrupting its own notifications and disclosing notification contents to whoever controls that address.

The record

CVE
CVE-2025-55155
Published
Nov 4, 2025
Updated
Nov 4, 2025
Vendor
MantisBT
Product
MantisBT
Classifications
CWE-201, CWE-354
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 4, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2.27.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

MantisBT · MantisBTversion=< 2.27.2

Published CVSS scores

5.4GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-201Insertion of Sensitive Information Into Sent Data
CWE-354Improper Validation of Integrity Check Value

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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