Public vulnerability disclosure

CVE-2023-6710

Mod_cluster/mod_proxy_cluster: stored cross site scripting

publishedCWE-79

A flaw was found in the mod_proxy_cluster in the Apache server. This issue may allow a malicious user to add a script in the 'alias' parameter in the URL to trigger the stored cross-site scripting (XSS) vulnerability. By adding a script on the alias parameter on the URL, it adds a new virtual host and adds the script to the cluster-manager page.

Technical severity5.4 mediumCVSS 3.1 · CNA: redhat
Published2023-12-12Source updated 2026-11-06
Collected2026-11-062 attributed sources

Fixes and workarounds

Workaround

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Source: CNA: redhat

Affected products and versions

Affected products, source version ranges and reporting authorities
ProductVersionsAuthority
JBoss Core Services for RHEL 8
Red Hat
jbcs-httpd24-mod_proxy_cluster
https://access.redhat.com/downloads/content/package-browser/
≥ 0:1.3.20-3.el8jbcs; < * (unaffected, rpm)
Other versions: affected
CNA: redhat
JBoss Core Services on RHEL 7
Red Hat
jbcs-httpd24-mod_proxy_cluster
https://access.redhat.com/downloads/content/package-browser/
≥ 0:1.3.20-3.el7jbcs; < * (unaffected, rpm)
Other versions: affected
CNA: redhat
Red Hat Enterprise Linux 9
Red Hat
mod_proxy_cluster
https://access.redhat.com/downloads/content/package-browser/
≥ 0:1.3.20-1.el9_4; < * (unaffected, rpm)
Other versions: affected
CNA: redhat
Red Hat JBoss Core Services
Red Hat
jbcs-httpd24-mod_proxy_cluster
https://access.redhat.com/downloads/content/package-browser/
Range not reported
Other versions: unaffected
CNA: redhat
Red Hat JBoss Core Services
Red Hat
mod_proxy_cluster
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html
Range not reported
Other versions: affected
CNA: redhat

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / scoreVectorAuthority
3.1 / 5.4
medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NCNA: redhat

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

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