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CVE-2026-118494HighCVSS 8.2CVE published 5 November 2026Added to mySites.guru 4 November 2026

JReviews (com_jreviews) below 5.13.0 and 6.x below 6.7.0 - Unauthenticated Disclosure of Secret Configuration Values from a Web-Accessible Cache File

JReviews 6.x before 6.7.0 (and every release before 5.13.0) caches its whole configuration table as a plain serialized file under components/com_s2framework/tmp/cache/ inside the web root, with no PHP guard and no .htaccess protection. The cached values include the site's Joomla secret (copied into the cms_secret setting), the JReviews cron secret and any third-party API keys configured in JReviews (maps, media storage, CAPTCHA, social). The file name includes a hash derived from the Joomla secret, so it is not blindly guessable, but anyone who learns it (directory listing, a leaked sibling cache file name, a backup, or another file-read flaw) can download it without logging in. The Joomla CNA assigned CVE-2026-117551 on 5 November 2026; until the record publishes, severity is the mySites.guru CVSS 4.0 assessment (8.2, AV:N/AC:L/AT:P/PR:N/UI:N/VC:H). Fixed by ClickFWD in 6.7.0 (4 November 2026). After updating, clear the JReviews cache so the old file is removed, then rotate the Joomla secret, the JReviews cron secret and any API keys stored in JReviews.

Is my site affected?

Affected
JReviews from 6.0.0 up to but not including 6.7.0
Fixed in
6.7.0
What to do
Update JReviews to 6.7.0 or later.
Check whether your sites are affected

How CVE-2026-118494 is scored

The base metrics as Joomla CNA published them, and what each one means for a site running an affected version. Threat and environmental metrics are left out: they describe a moment or a particular install rather than the flaw.

8.2 High

CVSS 4.0, scored by Joomla CNA
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

How it is reached

AV:N Attack vector
Network. Reachable across the internet
AC:L Attack complexity
Low. Nothing to work around, it just works
AT:P Attack requirements
Present. Needs a particular deployment or race to line up
PR:N Privileges required
None. No account needed
UI:N User interaction
None. Nobody has to be tricked into anything

What it does to the site

VC:H Confidentiality
High. Everything the site holds can be read
VI:N Integrity
None. Nothing can be altered
VA:N Availability
None. The site stays up

What it does beyond the site

SC:N Confidentiality
None. Other systems keep their data
SI:N Integrity
None. Other systems keep their integrity
SA:N Availability
None. Other systems stay up

Timeline

  1. 4 November 2026mySites.guru check added for JReviews (from 6.0.0 up to but not including 6.7.0)
  2. 5 November 2026CVE-2026-118494 record published by its CNA
  3. 5 November 2026We published: JReviews 6.7.0 and 5.13.0 Stop Caching Secrets in a Public Folder

Rule details

Our disclosure post

JReviews 6.7.0 and 5.13.0 Stop Caching Secrets in a Public Folder

JReviews 6.7.0 and 5.13.0 Stop Caching Secrets in a Public Folder

JReviews 6.7.0 and 5.13.0 stop writing the Joomla secret and API keys to a web-accessible cache file. What was exposed, who is affected and what to rotate.

Other vulnerabilities in JReviews

Updating for CVE-2026-118494 alone can leave a site on a release another rule still matches. These are the other flaws we check for in the same extension.

JReviews

Latest safe version: 6.7.0

References

CVE-2026-118494 questions

Which versions are affected by CVE-2026-118494?
CVE-2026-118494 affects JReviews from 6.0.0 up to but not including 6.7.0. The fix is in 6.7.0.
How do I fix CVE-2026-118494?
Update JReviews to 6.7.0 or later. Then confirm the installed version on the Joomla administrator's Extensions: Manage screen.
How severe is CVE-2026-118494?
Joomla CNA scores it 8.2 (High) under CVSS 4.0. In plain terms: reachable across the internet, no account needed and nobody has to be tricked into anything.

Running an affected version on a site you manage?

A free audit tells you which of your Joomla and WordPress sites run an affected version, which are out of date, and which have not been backed up. No card required. If a site is already compromised, fix.mysites.guru is a single fixed fee per incident, usually resolved the same day.

This check is part of the mySites.guru Joomla vulnerability scanner, which reads every installed extension's version on each audit. Browse the rest of the Joomla vulnerability database.

Rules current as of 5 November 2026.