MyBB Downloads Plugin 2.0.3 contains a persistent cross-site scripting vulnerability that allows regular members to inject malicious scripts through the download title field. Attackers can submit a new download with HTML/JavaScript code in the title parameter, which executes when administrators validate the download in downloads.php.

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 Downloads Plugin affected
Version Status Constraints
2.0.3 affected —

No data.

No data.

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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=854 cve-icon cve-icon
https://www.exploit-db.com/exploits/44400 cve-icon cve-icon
https://www.vulncheck.com/advisories/mybb-downloads-plugin-persistent-xss-via-downloads-php cve-icon cve-icon
History

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

Type Values Removed Values Added
Description MyBB Downloads Plugin 2.0.3 contains a persistent cross-site scripting vulnerability that allows regular members to inject malicious scripts through the download title field. Attackers can submit a new download with HTML/JavaScript code in the title parameter, which executes when administrators validate the download in downloads.php.
Title MyBB Downloads Plugin 2.0.3 Persistent XSS via downloads.php
First Time appeared Mybb
Mybb mybb
Weaknesses CWE-79
CPEs cpe:2.3:a:mybb:mybb:2.0.3:*:*:*:*:*:*:*
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: 2026-04-04T19:59:58.519Z

Reserved: 2026-04-04T13:22:18.496Z

Link: CVE-2018-25248

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-04T14:16:20.683

Modified: 2026-04-04T14:16:20.683

Link: CVE-2018-25248

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses