How severe is CVE-2025-3977?

CVE-2025-3977 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2025-3977 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-3977?

CVE-2025-3977 affects Iteachyou Dreamer Cms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-3977?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-3977 have an EU (EUVD) identifier?

Yes. CVE-2025-3977 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12441.

When was CVE-2025-3977 published?

CVE-2025-3977 was published on 2025-04-27 and last updated on 2026-06-17.

CVE-2025-3977

CVE-2025-3977 is a medium-severity vulnerability in Iteachyou Dreamer Cms with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-862.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.0
CVSS v4: 5.3
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-12441
Weakness: CWE-862
Affected product: Iteachyou Dreamer Cms
Published: 2025-04-27
Last modified: 2026-06-17

Description

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 disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2025-3977?: 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 disclosure but did not respond in any way.
How severe is CVE-2025-3977?: CVE-2025-3977 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2025-3977 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-3977?: CVE-2025-3977 affects Iteachyou Dreamer Cms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-3977?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-3977 have an EU (EUVD) identifier?: Yes. CVE-2025-3977 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12441.
When was CVE-2025-3977 published?: CVE-2025-3977 was published on 2025-04-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:iteachyou:dreamer_cms:*:*:*:*:*:*:*:*

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