CVE-2026-42197Network attack vector

Administrator account takeover via stored profile XSS

Published May 27, 2026 · Updated May 27, 2026

Stored XSS in inducer RELATE 2024.1 and earlier allows remote authenticated users to execute JavaScript in an administrator's browser. ParticipationAdmin.get_user passes profile-derived names into mark_safe after percent-formatting HTML, bypassing Django escaping. An enrolled student can store script in editable name fields; execution occurs when an administrator opens the participation list, enabling administrator account takeover.

CVSS severity8.7
High
EPSS probability0.31%
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 inducer RELATE 2024.1 and earlier allows remote authenticated users to execute JavaScript in an administrator's browser. ParticipationAdmin.get_user passes profile-derived names into mark_safe after percent-formatting HTML, bypassing Django escaping. An enrolled student can store script in editable name fields; execution occurs when an administrator opens the participation list, enabling administrator account takeover.

The record

CVE
CVE-2026-42197
Published
May 27, 2026
Updated
May 27, 2026
Vendor
inducer
Product
RELATE
Classifications
CWE-79, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 27, 2026CVE publishedPublication date reported by the CVE source.
  2. May 27, 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=< 555f0efb1c5bd7531c07cd73724d7e566a81f620

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

inducer · RELATEversion=< 555f0efb1c5bd7531c07cd73724d7e566a81f620

Published CVSS scores

8.7GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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