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CriticalPHP2Shell is fixed, but a researcher now claims six more unpatched PHP flaws. Nothing to do today, but PHP is not out of the woodsWhat to prepare
CVE-2026-78073MediumCVSS 5.3CVE published 28 August 2026Added to mySites.guru 28 August 2026

All Video Share (com_allvideoshare) below 4.5.0 - Unauthenticated Reflected Cross-Site Scripting

All Video Share fails to escape a number of user supplied inputs, giving reflected cross-site scripting vectors that need no authentication (CVSS 4.0 vector PR:N, UI:P - the victim must follow a crafted link). Reported by Krzysztof Zajac of CERT PL. NOTE ON THE AFFECTED RANGE: the CVE record contradicts itself. Its structured affected-version field states 1.0.0 to 4.4.99, meaning the flaw is fixed in 4.5.0, while its own title and description both state the range as 1.0.0 to 4.5.0, which would make 4.5.0 affected as well. This rule follows the structured field, so 4.5.0 is treated as fixed. The record also names the vendor inconsistently, as j2commerce.com in the title and mrvinoth.com in the affected block; every installation seen on the platform is Vinoth Kumar / MrVinoth. The CVE gives one continuous affected range from 1.0.0 and no backport to the older 2.x or 3.x lines has been published, so sites still on those lines have no fixed release on their own branch and must move to 4.5.0 or later.

Is my site affected?

Affected
All Video Share from 1.0.0 up to but not including 4.5.0
Fixed in
4.5.0
What to do
Update All Video Share to 4.5.0 or later.
Check whether your sites are affected

How CVE-2026-78073 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.

5.3 Medium

CVSS 4.0, scored by Joomla CNA
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/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:N Attack requirements
None. Works against any affected install
PR:N Privileges required
None. No account needed
UI:P User interaction
Passive. Someone has to visit a page

What it does to the site

VC:L Confidentiality
Low. Some data can be read
VI:L Integrity
Low. Some data can be altered
VA:L Availability
Low. The site slows or stutters

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. 28 August 2026CVE-2026-78073 record published by its CNA
  2. 28 August 2026mySites.guru check added for All Video Share (from 1.0.0 up to but not including 4.5.0)

Rule details

Other vulnerabilities in All Video Share

Updating for CVE-2026-78073 alone can leave a site on a release another rule still matches. These are the other flaws we check for in the same extension.

All Video Share

Latest safe version: 4.5.0

References

CVE-2026-78073 questions

Which versions are affected by CVE-2026-78073?
CVE-2026-78073 affects All Video Share from 1.0.0 up to but not including 4.5.0. The fix is in 4.5.0.
How do I fix CVE-2026-78073?
Update All Video Share to 4.5.0 or later. Then confirm the installed version on the Joomla administrator's Extensions: Manage screen.
How severe is CVE-2026-78073?
Joomla CNA scores it 5.3 (Medium) under CVSS 4.0. In plain terms: reachable across the internet, no account needed and someone has to visit a page.

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 25 October 2026.