CVE-2018-25248

5.1 mediumEPSS 0.2%

Medium (5.1) in mybb mybb downloads. EPSS 0.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

5.1 medium

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

CVSS 3.1

7.2 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 13% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2026-04-04
Modified: 2026-07-20
Record from: the NVD, synced 2026-10-19

Affected

mybb:mybb_downloads

References

https://community.mybb.com/mods.php?action=view&pid=854
https://www.exploit-db.com/exploits/44400
https://www.vulncheck.com/advisories/mybb-downloads-plugin-persistent-xss-via-downloads-php

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