How severe is CVE-2025-61505?

CVE-2025-61505 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-61505 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-61505?

CVE-2025-61505 affects E107. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-61505?

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

Does CVE-2025-61505 have an EU (EUVD) identifier?

Yes. CVE-2025-61505 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-33763.

When was CVE-2025-61505 published?

CVE-2025-61505 was published on 2025-10-10 and last updated on 2026-06-17.

CVE-2025-61505

CVE-2025-61505 is a medium-severity vulnerability in E107 with a CVSS 3.x base score of 6.5. 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-502.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-33763
Weakness: CWE-502
Affected product: E107
Published: 2025-10-10
Last modified: 2026-06-17

Description

e107 CMS thru 2.3.3 are vulnerable to insecure deserialization in the `install.php` script. The script processes user-controlled input in the `previous_steps` POST parameter using `unserialize(base64_decode())` without validation, allowing attackers to craft malicious serialized data. This could lead to remote code execution, arbitrary file operations, or denial of service, depending on available PHP object gadgets in the codebase.

Frequently asked questions

What is CVE-2025-61505?: e107 CMS thru 2.3.3 are vulnerable to insecure deserialization in the `install.php` script. The script processes user-controlled input in the `previous_steps` POST parameter using `unserialize(base64_decode())` without validation, allowing attackers to craft malicious serialized data. This could lead to remote code execution, arbitrary file operations, or denial of service, depending on available PHP object gadgets in the codebase.
How severe is CVE-2025-61505?: CVE-2025-61505 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-61505 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-61505?: CVE-2025-61505 affects E107. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-61505?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-61505 have an EU (EUVD) identifier?: Yes. CVE-2025-61505 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-33763.
When was CVE-2025-61505 published?: CVE-2025-61505 was published on 2025-10-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:e107:e107:*:*:*:*:*:*:*:*

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