CVE-2025-3816: A vulnerability classified as critical was found in westboy CicadasCMS 2.0

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MEDIUM 4.7DOWNGRADE

CVE-2025-3816 is a medium-severity flaw (CVSS 4.7) affecting cicadascms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability classified as critical was found in westboy CicadasCMS 2.0. This vulnerability affects unknown code of the file /system/schedule/save of the component Scheduled Task Handler. The manipulation leads to os command injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Why this priority

EPSS top 7%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	4.7 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	6.2% (top 7%)
CISA exploited list	No
Weakness	CWE-77, CWE-78
Published	2025-04-19
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: westboy

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

Am I affected?

Timeline

2025-04-19 18:15 UTCPublished CVE record published
2026-06-17 09:20 UTCUpdated Record last modified

westboy cicadascms DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison cicadascms sudo apt install cicadascms=<VERSION_BEFORE_1.0> sudo apt-mark hold cicadascms

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

dnf --showduplicates list cicadascms sudo dnf downgrade cicadascms-<VERSION_BEFORE_1.0> sudo dnf versionlock add cicadascms

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-2025-3816?

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

Is CVE-2025-3816 being exploited?

CVE-2025-3816 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-2025-3816 affect?

CVE-2025-3816 affects cicadascms. Severity is medium (CVSS 4.7). A vulnerability classified as critical was found in westboy CicadasCMS 2.0. This vulnerability affects unknown code of the file /system/schedule/save of the component Scheduled Task Handler. The manipulation leads to os command injection. T

How urgent is CVE-2025-3816?

Priority 45/100. EPSS top 7%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2025-11289 LOW 2.4 DOWNGRADE A vulnerability was determined in westboy CicadasCMS up to 2431154dac8d0735e04f1fd2a3c3556668fc8dab
CVE-2025-11068 LOW 2.4 DOWNGRADE A vulnerability was found in westboy CicadasCMS 1.0
CVE-2025-11069 LOW 2.4 DOWNGRADE A vulnerability was determined in westboy CicadasCMS 1.0
CVE-2025-3585 MEDIUM 6.3 DOWNGRADE A vulnerability classified as critical has been found in westboy CicadasCMS 1.0
CVE-2025-2625 MEDIUM 6.3 DOWNGRADE A vulnerability classified as critical has been found in westboy CicadasCMS 1.0

References

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