What is CVE-2024-43372?

CVE-2024-43372 is a high-severity cross-site scripting (XSS) vulnerability in ezsystems/ezplatform-richtext (composer), affecting versions >= 3.3.0, < 3.3.40. It is fixed in 3.3.40. Untrusted input is rendered as active markup in a victim's browser, which can run script in their session.

Which versions of ezsystems/ezplatform-richtext are affected by CVE-2024-43372?

ezsystems/ezplatform-richtext (composer) versions >= 3.3.0, < 3.3.40 is affected.

Is there a fix for CVE-2024-43372?

Yes. CVE-2024-43372 is fixed in 3.3.40. Upgrade to this version or later.

Is CVE-2024-43372 exploitable, and should I be worried?

Whether CVE-2024-43372 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk.

What actually determines whether CVE-2024-43372 is exploitable, and how bad it is?

Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.

How do I fix CVE-2024-43372?

Upgrade ezsystems/ezplatform-richtext to 3.3.40 or later.

CVE-2024-43372 in ezsystems/ezplatform-richtext

Q: Which versions of ezsystems/ezplatform-richtext are affected by CVE-2024-43372?

ezsystems/ezplatform-richtext (composer) versions >= 3.3.0, < 3.3.40 is affected.

Q: Is there a fix for CVE-2024-43372?

Yes. CVE-2024-43372 is fixed in 3.3.40. Upgrade to this version or later.

Q: Is CVE-2024-43372 exploitable, and should I be worried?

Whether CVE-2024-43372 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk.

Q: What actually determines whether CVE-2024-43372 is exploitable, and how bad it is?

Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.

Q: How do I fix CVE-2024-43372?

Upgrade ezsystems/ezplatform-richtext to 3.3.40 or later.

Summary

Persistent Cross-site Scripting in eZ Platform Rich Text Field Type

Workarounds

None.

References

Same issue in v4.6: https://github.com/ibexa/fieldtype-richtext/security/advisories/GHSA-hvcf-6324-cjh7
Ibexa advisory: https://developers.ibexa.co/security-advisories/ibexa-sa-2024-005-persistent-xss-in-richtext

Credit

This vulnerability was discovered and reported to Ibexa by Alec Romano: https://github.com/4rdr
We thank them for reporting it responsibly to us.

How to report security issues:
https://doc.ibexa.co/en/latest/infrastructure_and_maintenance/security/reporting_issues/

Impact

The validator for the RichText fieldtype blocklists javascript: and vbscript: in links to prevent XSS. This can leave other options open, and the check can be circumvented using upper case. Content editing permissions for RichText content is required to exploit this vulnerability, which typically means Editor role or higher. The fix implements an allowlist instead, which allows only approved link protocols. The new check is case insensitive.

Untrusted input is rendered as active markup in a victim's browser, which can run script in their session. Typical impact: session or credential theft, and actions taken as the user.

Affected versions

ezsystems/ezplatform-richtext (>= 3.3.0, < 3.3.40)

Security releases

ezsystems/ezplatform-richtext → 3.3.40 (composer)

Kodem intelligence

Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.

Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.

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Remediation advice

Frequently Asked Questions

What is CVE-2024-43372? CVE-2024-43372 is a high-severity cross-site scripting (XSS) vulnerability in ezsystems/ezplatform-richtext (composer), affecting versions >= 3.3.0, < 3.3.40. It is fixed in 3.3.40. Untrusted input is rendered as active markup in a victim's browser, which can run script in their session.
Which versions of ezsystems/ezplatform-richtext are affected by CVE-2024-43372? ezsystems/ezplatform-richtext (composer) versions >= 3.3.0, < 3.3.40 is affected.
Is there a fix for CVE-2024-43372? Yes. CVE-2024-43372 is fixed in 3.3.40. Upgrade to this version or later.
Is CVE-2024-43372 exploitable, and should I be worried? Whether CVE-2024-43372 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
What actually determines whether CVE-2024-43372 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
How do I fix CVE-2024-43372? Upgrade ezsystems/ezplatform-richtext to 3.3.40 or later.

Other vulnerabilities in ezsystems/ezplatform-richtext

CVE-IDSeverityPackage summary

GHSA-2JQJ-5QV2-XVCGHighezsystems/ezplatform-richtext: ezsystems/ezplatform-richtext allows access to external entities in XML GHSA-FXWM-RX68-P5VXMediumezsystems/ezplatform-richtext: XSS in richtext custom tag attributes in ezsystems/ezplatform-richtext