CVE-2018-25384Public exploitNetwork attack vector

Authenticated stored XSS via unescaped forum replies

Published May 29, 2026 · Updated May 29, 2026

Stored XSS in WikidForum 2.20 allows remote authenticated users to execute scripts in other users' browsers through forum replies. The rpc.php endpoint accepts crafted HTML in reply_text and stores reply content that is later rendered without neutralizing executable JavaScript. A valid account with reply-posting access is required, and execution occurs only when another user views the affected reply, exposing that user's forum-origin session and actions.

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 WikidForum 2.20 allows remote authenticated users to execute scripts in other users' browsers through forum replies. The rpc.php endpoint accepts crafted HTML in reply_text and stores reply content that is later rendered without neutralizing executable JavaScript. A valid account with reply-posting access is required, and execution occurs only when another user views the affected reply, exposing that user's forum-origin session and actions.

The record

CVE
CVE-2018-25384
Published
May 29, 2026
Updated
May 29, 2026
Vendor
WikidForum
Product
WikidForum
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 29, 2026CVE publishedPublication date reported by the CVE source.
  2. May 29, 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=0 <=2.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WikidForum · WikidForumversion=0 <=2.2.0

Published CVSS scores

5.4VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/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:N/VI:N/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')
T1059.007Command and Scripting Interpreter: JavaScript

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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