MyBB Last User's Threads in Profile Plugin 1.2 contains a persistent cross-site scripting vulnerability that allows attackers to inject malicious scripts by crafting thread subjects with script tags. Attackers can create threads with script payloads in the subject field that execute when users visit the attacker's profile page.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
MyBB MyBB Last User's Threads in Profile Plugin affected
Version Status Constraints
1.2 affected —

No data.

No data.

No data.

Project Subscriptions

Vendors Products
Mybb Subscribe
Mybb Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://community.mybb.com/mods.php?action=view&pid=910 cve-icon cve-icon
https://www.exploit-db.com/exploits/44339 cve-icon cve-icon
https://www.vulncheck.com/advisories/mybb-last-user-s-threads-in-profile-plugin-persistent-xss cve-icon cve-icon
History

Sat, 04 Apr 2026 15:00:00 +0000

Type Values Removed Values Added
Description MyBB Last User's Threads in Profile Plugin 1.2 contains a persistent cross-site scripting vulnerability that allows attackers to inject malicious scripts by crafting thread subjects with script tags. Attackers can create threads with script payloads in the subject field that execute when users visit the attacker's profile page.
Title MyBB Last User's Threads in Profile Plugin 1.2 Persistent XSS
First Time appeared Mybb
Mybb mybb
Weaknesses CWE-79
CPEs cpe:2.3:a:mybb:mybb:1.2:*:*:*:*:*:*:*
Vendors & Products Mybb
Mybb mybb
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-04-04T20:00:02.191Z

Reserved: 2026-04-04T13:24:30.747Z

Link: CVE-2018-25250

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-04T14:16:21.033

Modified: 2026-04-04T14:16:21.033

Link: CVE-2018-25250

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses