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CVE-2024-21727MediumCVSS 6.1CVE published 15 February 2024Added to mySites.guru 15 February 2024

DPCalendar (com_dpcalendar) 8.0.0 to 8.14.0 - Cross-Site Scripting

DP Calendar by Digital Peak, versions 8.0.0 through 8.14.0, is affected by a cross-site scripting vulnerability. Update to 8.14.1 or later; the current Joomla 4/5/6 branch is 10.11.2. Sites on the 8.x branch should also check the separate unauthenticated SQL injection rules for DPCalendar.

Is my site affected?

Affected
DPCalendar from 8.0.0 up to and including 8.14.0
Fixed in
Update to 8.14.1 or later
What to do
Update DPCalendar to 8.14.1 for this flaw, or to 10.12.1 or later, which no rule we check matches.
Check whether your sites are affected

How CVE-2024-21727 is scored

The base metrics as CISA-ADP 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.

6.1 Medium

CVSS 3.1, scored by CISA-ADP
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A: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
PR:N Privileges required
None. No account needed
UI:R User interaction
Required. Someone has to click or visit something
S:C Scope
Changed. The flaw reaches past the extension it is in

What it does

C:L Confidentiality
Low. Some data can be read
I:L Integrity
Low. Some data can be altered
A:N Availability
None. The site stays up

Timeline

  1. 15 February 2024CVE-2024-21727 record published by its CNA
  2. 15 February 2024mySites.guru check added for DPCalendar (from 8.0.0 up to and including 8.14.0)

Rule details

Other vulnerabilities in DPCalendar

Updating for CVE-2024-21727 alone can leave a site on a release another rule still matches. These are the other flaws we check for in the same extension.

DPCalendar

Latest safe version: 10.12.1

References

CVE-2024-21727 questions

Which versions are affected by CVE-2024-21727?
CVE-2024-21727 affects DPCalendar from 8.0.0 up to and including 8.14.0.
How do I fix CVE-2024-21727?
Update DPCalendar to 8.14.1 for this flaw, or to 10.12.1 or later, which no rule we check matches. Then confirm the installed version on the Joomla administrator's Extensions: Manage screen.
How severe is CVE-2024-21727?
CISA-ADP scores it 6.1 (Medium) under CVSS 3.1. In plain terms: reachable across the internet, no account needed and someone has to click or visit something.

Running an affected version on a site you manage?

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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 October 2026.