CVE-2025-27754: A stored XSS vulnerability in RSBlog! component 1.11.6 - 1.14.4 for Joomla was discovered

Routine

MEDIUM 6.5REMOTEUPGRADE

CVE-2025-27754 is a medium-severity flaw (CVSS 6.5) affecting rsform\!blog. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A stored XSS vulnerability in RSBlog! component 1.11.6 - 1.14.4 for Joomla was discovered. The vulnerability allows authenticated users to inject malicious JavaScript into the plugin's resource. The injected payload is stored by the application and later executed when other users view the affected content.

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 88%)
CISA exploited list	No
Weakness	CWE-79
Published	2025-06-05
Last modified	2026-06-17

Publisher (CNA): Joomla! Project · Vendor: rsjoomla

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-06-05 14:15 UTCPublished CVE record published
2026-06-17 09:04 UTCUpdated Record last modified

rsjoomla rsform\!blog UPGRADE

Affected: >= 1.11.6 and <= 1.14.4

Fixed in: newer than 1.14.4

Safe to downgrade to: a release before 1.11.6

1. Check installed version

apt-cache policy rsformblog || rpm -q rsformblog || rsformblog --version

2. UPGRADE to newer than 1.14.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade rsformblog

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade rsformblog

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 1.11.6 (Debian / Ubuntu)

apt-cache madison rsformblog sudo apt install rsformblog=<VERSION_BEFORE_1.11.6> sudo apt-mark hold rsformblog

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list rsformblog sudo dnf downgrade rsformblog-<VERSION_BEFORE_1.11.6> sudo dnf versionlock add rsformblog

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-2025-27754?

rsform\!blog: upgrade to newer than 1.14.4. Exact commands for each OS are on this page.

Is CVE-2025-27754 being exploited?

CVE-2025-27754 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-2025-27754 affect?

CVE-2025-27754 affects rsform\!blog. Severity is medium (CVSS 6.5). A stored XSS vulnerability in RSBlog! component 1.11.6 - 1.14.4 for Joomla was discovered. The vulnerability allows authenticated users to inject malicious JavaScript into the plugin's resource. The injected payload is stored by the applica

How urgent is CVE-2025-27754?

Priority 31/100. Remotely exploitable, no login, no user action

Software pages

Joomla vulnerabilities

References

← Back to latest CVEs