CVE-2024-1128Network attack vector

Authenticated HTML injection via unsanitized Q&A input

Published Feb 20, 2024 · Updated Apr 8, 2026

HTML injection in Themeum Tutor LMS 2.6.0 and earlier allows remote authenticated users to alter Q&A content with arbitrary HTML. The Q_And_A request handler stores submitted question and answer markup in Q&A content without applying the WordPress post-content allowlist. Student access is sufficient, and the injected markup changes displayed site content but does not execute scripts as cross-site scripting.

CVSS severity3.5
Low
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

HTML injection in Themeum Tutor LMS 2.6.0 and earlier allows remote authenticated users to alter Q&A content with arbitrary HTML. The Q_And_A request handler stores submitted question and answer markup in Q&A content without applying the WordPress post-content allowlist. Student access is sufficient, and the injected markup changes displayed site content but does not execute scripts as cross-site scripting.

The record

CVE
CVE-2024-1128
Published
Feb 20, 2024
Updated
Apr 8, 2026
Vendor
Themeum
Product
Tutor LMS
Classifications
CWE-79, CWE-74, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 20, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=0 <=2.6.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Themeum · Tutor LMSversion=0 <=2.6.0

Published CVSS scores

5.4WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
3.5NISTCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/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')
CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1565.001Stored Data Manipulation

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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