Affected versions: ≥ 5.5.0 and < 8.19.5
Full advisory: joomla.digital-peak.com
CVE-2026-78070MediumCVSS 6.9CVE published 28 August 2026Added to mySites.guru 28 August 2026
DPCalendar (com_dpcalendar) 5.5.0 to 8.19.4 (Joomla 3) - Authenticated Blind SQL Injection
DPCalendar contains a blind SQL injection reachable by saving a Joomla article. The DPCalendar content plugin passes the order and orderdir parameters of a {dpcalendar} tag into the events query ORDER BY clause without validating them against the model filter_fields allow-list. The sink used the database escape() helper, which secures string literals but not SQL identifiers, so the sort column is injectable. Exploitation requires an account holding permission to create or update articles, so this is authenticated and privileged (CVSS 4.0 vector PR:H), not anonymous. Reported by Toan Le as vendor issue 12206. Fixed in 10.12.0 on the Joomla 4 to 6 branch and backported to 8.19.5 on the Joomla 3 branch. Temporary mitigation: disable the "Content - DPCalendar" plugin, which is the only route in.
Is my site affected?
CVE-2026-78070 is checked by 2 rules. Find the extension and release line your site runs:
| Extension | Affected versions | Fixed in | What to do |
|---|---|---|---|
| DPCalendar | from 5.5.0 up to but not including 8.19.5 | 8.19.5 | Update DPCalendar to 8.19.5 for this flaw, or to 10.12.1 or later, which no rule we check matches. |
| DPCalendar | from 9.0.0 up to and including 10.11.2 | after 10.11.2 | Update DPCalendar to the newest release from the vendor. This flaw covers versions up to 10.11.2, so any later release is outside it. |
How CVE-2026-78070 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.
6.9 Medium
CVSS 4.0, scored by Joomla CNACVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:NHow 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:H Privileges required
- High. Needs an account with elevated rights
- 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
- 28 August 2026CVE-2026-78070 record published by its CNA
- 28 August 2026mySites.guru check added for DPCalendar (from 5.5.0 up to but not including 8.19.5)
- 28 August 2026mySites.guru check added for DPCalendar (from 9.0.0 up to and including 10.11.2)
Rule details
DPCalendar - DPCalendar (com_dpcalendar) 9.0.0 to 10.11.2 (Joomla 4 to 6) - Authenticated Blind SQL Injection
DPCalendar contains a blind SQL injection reachable by saving a Joomla article. The DPCalendar content plugin passes the order and orderdir parameters of a {dpcalendar} tag into the events query ORDER BY clause without validating them against the model filter_fields allow-list. The sink used the database escape() helper, which secures string literals but not SQL identifiers, so the sort column is injectable. Exploitation requires an account holding permission to create or update articles, so this is authenticated and privileged (CVSS 4.0 vector PR:H), not anonymous. Reported by Toan Le as vendor issue 12206. Fixed in 10.12.0 on the Joomla 4 to 6 branch and backported to 8.19.5 on the Joomla 3 branch. Temporary mitigation: disable the "Content - DPCalendar" plugin, which is the only route in.
Affected versions: ≥ 9.0.0 and ≤ 10.11.2
Full advisory: joomla.digital-peak.com
Other vulnerabilities in DPCalendar
Updating for CVE-2026-78070 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
- CVE-2026-78071 High, from 7.0.0 up to but not including 8.19.6
- CVE-2026-57831 High, from 9.0.0 up to but not including 10.11.2
- CVE-2024-21727 Medium, from 8.0.0 up to and including 8.14.0
References
- CVE-2026-78070 on cve.org (the official CVE record)
- CVE-2026-78070 in the NIST National Vulnerability Database
- joomla.digital-peak.com/products/dpcalendar
CVE-2026-78070 questions
Which versions are affected by CVE-2026-78070?
CVE-2026-78070 is covered by 2 rules: DPCalendar from 5.5.0 up to but not including 8.19.5; DPCalendar from 9.0.0 up to and including 10.11.2.
How do I fix CVE-2026-78070?
It depends on the extension and release line your site runs. For DPCalendar from 5.5.0 up to but not including 8.19.5: update DPCalendar to 8.19.5 for this flaw, or to 10.12.1 or later, which no rule we check matches. For DPCalendar from 9.0.0 up to and including 10.11.2: update DPCalendar to the newest release from the vendor. This flaw covers versions up to 10.11.2, so any later release is outside it.
How severe is CVE-2026-78070?
Joomla CNA scores it 6.9 (Medium) under CVSS 4.0. In plain terms: reachable across the internet, needs an account with elevated rights and nobody has to be tricked into anything.
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 24 October 2026.