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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
2026-07-21
Advisory published
2026-07-17
Advisory updated
2026-07-21

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.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-58148 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-58148

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-58148 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-58148

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.