CVE-2025-65675: Stored Cross site scripting (XSS) vulnerability in Classroomio LMS 0.1.13 allows authenticated attackers to ex

Routine

MEDIUM 5.4DOWNGRADE

CVE-2025-65675 is a medium-severity flaw (CVSS 5.4) affecting classroomio. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Stored Cross site scripting (XSS) vulnerability in Classroomio LMS 0.1.13 allows authenticated attackers to execute arbitrary code via crafted SVG profile pictures.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.2% (top 86%)
CISA exploited list	No
Weakness	CWE-79
Published	2025-11-26
Last modified	2026-10-26

Publisher (CNA): MITRE · Vendor: classroomio

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-11-26 19:15 UTCPublished CVE record published
2026-10-26 22:10 UTCUpdated Record last modified

classroomio classroomio DOWNGRADE

Affected: 0.1.13

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.1.13

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.1.13 (Debian / Ubuntu)

apt-cache madison classroomio sudo apt install classroomio=<VERSION_BEFORE_0.1.13> sudo apt-mark hold classroomio

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

dnf --showduplicates list classroomio sudo dnf downgrade classroomio-<VERSION_BEFORE_0.1.13> sudo dnf versionlock add classroomio

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-2025-65675?

classroomio: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-65675 being exploited?

CVE-2025-65675 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-2025-65675 affect?

CVE-2025-65675 affects classroomio. Severity is medium (CVSS 5.4). Stored Cross site scripting (XSS) vulnerability in Classroomio LMS 0.1.13 allows authenticated attackers to execute arbitrary code via crafted SVG profile pictures.

How urgent is CVE-2025-65675?

Priority 28/100. Public exploit reference

References

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