PatchSiren cyber security CVE debrief

CVE-2026-58148 chronoengine.com CVE debrief

CVE-2026-58148 is an unauthenticated stored XSS vulnerability in Joomla ChronoForms, a popular extension for Joomla. The vulnerability has a CVSS score of 8.7 and is considered HIGH severity. The CVE record was published on 2026-07-17T16:17:15.897Z and was last modified on 2026-07-17T18:04:04.083Z. The vulnerability allows an attacker to inject malicious code into the application, which can then be executed by other users. Administrators and users of Joomla ChronoForms should be aware of this vulnerability and take necessary actions to mitigate it.

Vendor: chronoengine.com
Product: ChronoForms extension for Joomla
CVSS: HIGH 8.7
CISA KEV: Not listed in stored evidence
Original CVE published: 2026-07-17
Original CVE updated: 2026-07-17
Advisory published: 2026-07-17
Advisory updated: 2026-07-17

Who should care

Administrators and users of Joomla ChronoForms, as well as security teams and vulnerability management teams, should be aware of this vulnerability and take necessary actions to mitigate it. Affected deployments should be identified, and owners should be assigned for follow-up. Compensating controls should be reviewed for exposed systems while remediation is scheduled and verified.

Technical summary

The Joomla extension ChronoForms is vulnerable to an unauthenticated stored XSS vulnerability. This vulnerability allows an attacker to inject malicious code into the application, which can then be executed by other users. The vulnerability affects Joomla ChronoForms and has a CVSS score of 8.7. The CVE record was published on 2026-07-17T16:17:15.897Z and was last modified on 2026-07-17T18:04:04.083Z.

Defensive priority

High

Recommended defensive actions

Apply the latest patch or update for Joomla ChronoForms
Restrict access to the affected application
Monitor for suspicious activity
Review compensating controls for exposed systems while remediation is scheduled and verified
Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record was published on 2026-07-17T16:17:15.897Z and was last modified on 2026-07-17T18:04:04.083Z. The NVD entry is currently Deferred. The vulnerability affects Joomla ChronoForms, allowing an attacker to inject malicious code. Evidence is limited, and defenders should verify affected deployments and review official advisories.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-17T16:17:15.897Z and has not been modified since then. The NVD entry is currently Deferred.