CVE-2018-25132Public exploitNetwork attack vector

Stored XSS via unsanitized thread titles

Published Jan 23, 2026 · Updated Jan 23, 2026

Stored XSS in Trending Widget for MyBB 1.2 allows remote authenticated users to execute scripts in visitors' browsers via thread titles. The widget reads database-backed thread titles and inserts them into its rendered HTML without output encoding or sanitization. Exploitation requires permission to change a thread title and a victim who views the trending widget; the script runs in the forum origin.

CVSS severity5.1
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Trending Widget for MyBB 1.2 allows remote authenticated users to execute scripts in visitors' browsers via thread titles. The widget reads database-backed thread titles and inserts them into its rendered HTML without output encoding or sanitization. Exploitation requires permission to change a thread title and a victim who views the trending widget; the script runs in the forum origin.

The record

CVE
CVE-2018-25132
Published
Jan 23, 2026
Updated
Jan 23, 2026
Vendor
Zain Ali
Product
Trending Widget for MyBB
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Zain Ali · Trending Widget for MyBBversion=1.2

Published CVSS scores

6.1VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.1VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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