How severe is CVE-2025-62781?

CVE-2025-62781 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2025-62781 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-62781?

CVE-2025-62781 affects Thm Pilos. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-62781?

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

Does CVE-2025-62781 have an EU (EUVD) identifier?

Yes. CVE-2025-62781 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-36381.

When was CVE-2025-62781 published?

CVE-2025-62781 was published on 2025-10-27 and last updated on 2026-06-17.

CVE-2025-62781

CVE-2025-62781 is a medium-severity vulnerability in Thm Pilos with a CVSS 3.x base score of 5.0. 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-613.

Key facts

Severity: Medium (CVSS 3.x base score 5.0)
EPSS exploit prediction: 0% (5th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-36381
Weakness: CWE-613
Affected product: Thm Pilos
Published: 2025-10-27
Last modified: 2026-06-17

Description

PILOS (Platform for Interactive Live-Online Seminars) is a frontend for BigBlueButton. Prior to 4.8.0, users with a local account can change their password while logged in. When doing so, all other active sessions are terminated, except for the currently active one. However, the current session’s token remains valid and is not refreshed. If an attacker has previously obtained this session token through another vulnerability, changing the password will not invalidate their access. As a result, the attacker can continue to act as the user even after the password has been changed. This vulnerability is fixed in 4.8.0.

Frequently asked questions

What is CVE-2025-62781?: PILOS (Platform for Interactive Live-Online Seminars) is a frontend for BigBlueButton. Prior to 4.8.0, users with a local account can change their password while logged in. When doing so, all other active sessions are terminated, except for the currently active one. However, the current session’s token remains valid and is not refreshed. If an attacker has previously obtained this session token through another vulnerability, changing the password will not invalidate their access. As a result, the attacker can continue to act as the user even after the password has been changed. This vulnerability is fixed in 4.8.0.
How severe is CVE-2025-62781?: CVE-2025-62781 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2025-62781 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-62781?: CVE-2025-62781 affects Thm Pilos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-62781?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-62781 have an EU (EUVD) identifier?: Yes. CVE-2025-62781 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-36381.
When was CVE-2025-62781 published?: CVE-2025-62781 was published on 2025-10-27 and last updated on 2026-06-17.

References

https://github.com/THM-Health/PILOS/security/advisories/GHSA-m8w5-8w3h-72wm

Affected products (1)

cpe:2.3:a:thm:pilos:*:*:*:*:*:*:*:*

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