Affected versions: ≥ 5.5.0 and < 8.19.5
Full advisory: joomla.digital-peak.com
CVE-2026-78070MediumCVSS 6.9Published 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.
Affected versions: ≥ 5.5.0 and < 8.19.5
Official record: cve.org · NVD
Every connected Joomla site is checked against these rules on each audit, and flagged if it runs an affected version.
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
Affected extensions and versions
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
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Rules current as of 3 October 2026.