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CVE-2015-2149: Multiple cross-site scripting (XSS) vulnerabilities in the administrative backend in MyBB (aka MyBulletinBo...

Multiple cross-site scripting (XSS) vulnerabilities in the administrative backend in MyBB (aka MyBulletinBoard) before 1.8.4 allow remote authenticated users to inject arbitrary web script or HTML via the (1) MIME-type field in an add action in the config-attachment_types module to admin/index.php; (2) title or (3) short description field in an add action in the (a) config-mycode or (b) user-groups module to admin/index.php; (4) title field in an add action in the (c) forum-management or (d) tool-tasks module to admin/index.php; (5) name field in an add_set action in the style-templates module to admin/index.php; (6) title field in an add_template_group action in the style-templates module to admin/index.php; (7) name field in an add action in the config-post_icons module to admin/index.php; (8) "title to assign" field in an add action in the user-titles module to admin/index.php; or (9) username field in the config-banning module to admin/index.php.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2015-2149 is a set of stored XSS flaws in the MyBB administrative backend before version 1.8.4. A logged-in user with backend access could save malicious script or HTML in several admin-managed fields, potentially affecting other administrators who later view those entries. Exposure is mainly MyBB installations older than 1.8.4 where untrusted or lower-trust authenticated users can access affected administrative modules. Public-facing forum users are not described as direct unauthenticated attackers in the CVE text. Treat this as a moderate-priority legacy platform risk. It is most urgent where old MyBB systems remain in service or where multiple people have administrative access. Fix by upgrading and tightening admin access rather than by emergency incident response unless local evidence suggests abuse. Mitigation focus: Upgrade MyBB to 1.8.4 or later, following vendor guidance.; Restrict administrative backend access to trusted users only.; Review admin roles and remove unnecessary module permissions..

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Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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