CVE-2026-115452: Joomla Extension - tassos.gr - Privileged stored XSS in Advanced Custom Fields 2.8.2-2.8.15, 3.0.0-3.1.8 and S

Routine

HIGH 7.5DOWNGRADEDOWNGRADE

CVE-2026-115452 is a high-severity flaw (CVSS 7.5) affecting advanced custom fields extension for joomla, smile pack extension for joomla. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Joomla Extension - tassos.gr - Privileged stored XSS in Advanced Custom Fields 2.8.2-2.8.15, 3.0.0-3.1.8 and Smile Pack 1.1.2-1.2.9, 2.0.0-2.1.6 - A user who could edit a Map marker label, like an article author, could add a script that ran for anyone who opened the marker.

Why this priority

High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	n/a
CISA exploited list	No
Weakness	CWE-79
Published	2026-11-05
Last modified	2026-11-05

Publisher (CNA): Joomla · Vendor: tassos.gr · Source: CVE Program record (NVD analysis pending)

Last updated 2026-11-05 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-11-05 17:51 UTCPublished CVE record published
2026-11-05 17:51 UTCUpdated Record last modified

tassos.gr advanced custom fields extension for joomla DOWNGRADE

Affected: 3.0.0-3.1.8 · 2.8.2-2.8.15

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.8.2-2.8.15

1. Check installed version

apt-cache policy advanced-custom-fields-extension-for-joomla || rpm -q advanced-custom-fields-extension-for-joomla || advanced-custom-fields-extension-for-joomla --version

2. No fixed release: DOWNGRADE to a release before 2.8.2-2.8.15 (Debian / Ubuntu)

apt-cache madison advanced-custom-fields-extension-for-joomla sudo apt install advanced-custom-fields-extension-for-joomla=<VERSION_BEFORE_2.8.2-2.8.15> sudo apt-mark hold advanced-custom-fields-extension-for-joomla

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list advanced-custom-fields-extension-for-joomla sudo dnf downgrade advanced-custom-fields-extension-for-joomla-<VERSION_BEFORE_2.8.2-2.8.15> sudo dnf versionlock add advanced-custom-fields-extension-for-joomla

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

tassos.gr smile pack extension for joomla DOWNGRADE

Affected: 2.0.0-2.1.6 · 1.1.2-1.2.9

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.1.2-1.2.9

1. Check installed version

apt-cache policy smile-pack-extension-for-joomla || rpm -q smile-pack-extension-for-joomla || smile-pack-extension-for-joomla --version

2. No fixed release: DOWNGRADE to a release before 1.1.2-1.2.9 (Debian / Ubuntu)

apt-cache madison smile-pack-extension-for-joomla sudo apt install smile-pack-extension-for-joomla=<VERSION_BEFORE_1.1.2-1.2.9> sudo apt-mark hold smile-pack-extension-for-joomla

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list smile-pack-extension-for-joomla sudo dnf downgrade smile-pack-extension-for-joomla-<VERSION_BEFORE_1.1.2-1.2.9> sudo dnf versionlock add smile-pack-extension-for-joomla

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-115452?

advanced custom fields extension for joomla: downgrade or apply the listed mitigation; smile pack extension for joomla: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-115452 being exploited?

CVE-2026-115452 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-115452 affect?

CVE-2026-115452 affects advanced custom fields extension for joomla, smile pack extension for joomla. Severity is high (CVSS 7.5). Joomla Extension - tassos.gr - Privileged stored XSS in Advanced Custom Fields 2.8.2-2.8.15, 3.0.0-3.1.8 and Smile Pack 1.1.2-1.2.9, 2.0.0-2.1.6 - A user who could edit a Map marker label, like an article author, could add a script that ran

How urgent is CVE-2026-115452?

Priority 26/100. High severity

Software pages

Joomla vulnerabilities

References

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