CVE-2023-39777
CVE-2023-39777 is a medium-severity vulnerability in Vbulletin with a CVSS 3.x base score of 5.4. 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: Medium (CVSS 3.x base score 5.4)
- EPSS exploit prediction: 0% (31st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Vbulletin
- Published:
- Last modified:
Description
A cross-site scripting (XSS) vulnerability in the Admin Control Panel of vBulletin 5.7.5 and 6.0.0 allows attackers to execute arbitrary web scripts or HTML via the /login.php?do=login url parameter.
Frequently asked questions
- What is CVE-2023-39777?
- A cross-site scripting (XSS) vulnerability in the Admin Control Panel of vBulletin 5.7.5 and 6.0.0 allows attackers to execute arbitrary web scripts or HTML via the /login.php?do=login url parameter.
- How severe is CVE-2023-39777?
- CVE-2023-39777 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2023-39777 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-39777?
- CVE-2023-39777 affects Vbulletin. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-39777?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2023-39777 published?
- CVE-2023-39777 was published on 2023-09-16 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:vbulletin:vbulletin:*:*:*:*:*:*:*:*
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