Security readout for executives and security teams
Plain-English summary
CVE-2018-25132 affects MyBB sites using the Trending Widget Plugin version 1.2. A malicious thread title can cause script to run in another user's browser when the trending widget is viewed. Business risk is mainly account/session exposure, user impersonation, or malicious content shown to forum users.
Executive priority
Treat as a near-term remediation item for public forums using this plugin. It is not rated critical, but public exploit information and user-facing impact justify prompt inventory, containment, and vendor follow-up.
Technical view
This is a stored cross-site scripting issue in zainali99 MyBB Trending Widget Plugin 1.2. The reported injection point is thread titles rendered by the trending widget. CVSS 3.1 is 6.1, with network attack vector, low complexity, no privileges required, user interaction required, and changed scope.
Likely exposure
Exposure is limited to MyBB deployments that installed the zainali99 Trending Widget Plugin version 1.2. Sites not using this plugin are not affected based on the provided sources.
Exploitation context
An Exploit-DB entry is cited, so public exploit information exists. The source bundle does not show CISA KEV listing or confirmed active exploitation. Exploitation requires a victim to view the affected trending widget content.
Researcher notes
The sources identify version 1.2 and CWE-79. They do not provide evidence of a patched release, active exploitation, or broader affected versions. Avoid assuming other MyBB plugins or core MyBB are affected without separate evidence.
Mitigation direction
- Inventory MyBB sites for the Trending Widget Plugin.
- If version 1.2 is present, check vendor or project guidance.
- Disable the plugin if no trusted fix is available.
- Restrict who can create or rename threads where feasible.
- Review forum content moderation controls for unsafe titles.
Validation and detection
- Confirm whether the zainali99 Trending Widget Plugin is installed.
- Record the installed plugin version on each MyBB site.
- Review pages where the trending widget renders thread titles.
- Check logs and content history for suspicious thread-title changes.
- Monitor vendor, CVE, and advisory pages for update information.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2018-25132 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N2.82.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.1MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-49504CVE reference · exploit
- Trending Widget GitHub RepositoryCVE reference · product
- VulnCheck Advisory: MyBB Trending Widget Plugin 1.2 - Cross-Site ScriptingCVE reference · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.