How severe is CVE-2025-8550?

CVE-2025-8550 has a CVSS 3.x base score of 2.4, rated low severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2025-8550 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-8550?

CVE-2025-8550 affects Pybbs Project Pybbs. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-8550?

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

Does CVE-2025-8550 have an EU (EUVD) identifier?

Yes. CVE-2025-8550 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-23608.

When was CVE-2025-8550 published?

CVE-2025-8550 was published on 2025-08-05 and last updated on 2026-06-17.

CVE-2025-8550

CVE-2025-8550 is a low-severity vulnerability in Pybbs Project Pybbs with a CVSS 3.x base score of 2.4. 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-79.

Key facts

Severity: Low (CVSS 3.x base score 2.4)
CVSS v2: 3.3
CVSS v4: 1.9
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-23608
Weakness: CWE-79
Affected product: Pybbs Project Pybbs
Published: 2025-08-05
Last modified: 2026-06-17

Description

A vulnerability was found in atjiu pybbs up to 6.0.0. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file /admin/topic/list. The manipulation of the argument Username leads to cross site scripting. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The patch is named 2fe4a51afbce0068c291bc1818bbc8f7f3b01a22. It is recommended to apply a patch to fix this issue.

Frequently asked questions

What is CVE-2025-8550?: A vulnerability was found in atjiu pybbs up to 6.0.0. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file /admin/topic/list. The manipulation of the argument Username leads to cross site scripting. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The patch is named 2fe4a51afbce0068c291bc1818bbc8f7f3b01a22. It is recommended to apply a patch to fix this issue.
How severe is CVE-2025-8550?: CVE-2025-8550 has a CVSS 3.x base score of 2.4, rated low severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2025-8550 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-8550?: CVE-2025-8550 affects Pybbs Project Pybbs. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-8550?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-8550 have an EU (EUVD) identifier?: Yes. CVE-2025-8550 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-23608.
When was CVE-2025-8550 published?: CVE-2025-8550 was published on 2025-08-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:pybbs_project:pybbs:*:*:*:*:*:*:*:*

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