CVE-2025-3977: A vulnerability was found in iteachyou Dreamer CMS up to 4.1.3

Q: How do I fix CVE-2025-3977?

dreamer cms: upgrade to newer than 4.1.3. Exact commands for each OS are on this page.

Q: Is CVE-2025-3977 being exploited?

CVE-2025-3977 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-3977 affect?

CVE-2025-3977 affects dreamer cms. Severity is medium (CVSS 4.3). A vulnerability was found in iteachyou Dreamer CMS up to 4.1.3. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file /admin/attachment/download of the component Attachment Handler. The

Q: How urgent is CVE-2025-3977?

Priority 23/100. No elevated risk signals yet.

Routine

MEDIUM 4.3UPGRADE

CVE-2025-3977 is a medium-severity flaw (CVSS 4.3) affecting dreamer cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in iteachyou Dreamer CMS up to 4.1.3. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file /admin/attachment/download of the component Attachment Handler. The manipulation of the argument ID leads to improper authorization. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disc

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 69%)
CISA exploited list	No
Weakness	CWE-266, CWE-285, CWE-862
Published	2025-04-27
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: iteachyou

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

Am I affected?

Timeline

2025-04-27 17:15 UTCPublished CVE record published
2026-06-17 09:21 UTCUpdated Record last modified

iteachyou dreamer cms UPGRADE

Affected: <= 4.1.3

Fixed in: newer than 4.1.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy dreamer-cms || rpm -q dreamer-cms || dreamer-cms --version

2. UPGRADE to newer than 4.1.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade dreamer-cms

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade dreamer-cms

Note

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

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-2025-3977?

dreamer cms: upgrade to newer than 4.1.3. Exact commands for each OS are on this page.

Is CVE-2025-3977 being exploited?

CVE-2025-3977 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-2025-3977 affect?

CVE-2025-3977 affects dreamer cms. Severity is medium (CVSS 4.3). A vulnerability was found in iteachyou Dreamer CMS up to 4.1.3. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file /admin/attachment/download of the component Attachment Handler. The

How urgent is CVE-2025-3977?

Priority 23/100. No elevated risk signals yet.

Related CVEs

CVE-2025-1548 LOW 3.5 DOWNGRADE A vulnerability was found in iteachyou Dreamer CMS 4.1.3
CVE-2025-1543 MEDIUM 4.3 DOWNGRADE A vulnerability, which was classified as problematic, has been found in iteachyou Dreamer CMS 4.1.3

References

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