How severe is CVE-2023-5891?

CVE-2023-5891 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-2023-5891 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-5891?

CVE-2023-5891 affects Sfu Pkp Web Application Library. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-5891?

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

When was CVE-2023-5891 published?

CVE-2023-5891 was published on 2023-11-01 and last updated on 2026-06-17.

CVE-2023-5891

CVE-2023-5891 is a medium-severity vulnerability in Sfu Pkp Web Application Library 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% (32nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Sfu Pkp Web Application Library
Published: 2023-11-01
Last modified: 2026-06-17

Description

Cross-site Scripting (XSS) - Reflected in GitHub repository pkp/pkp-lib prior to 3.3.0-16.

Frequently asked questions

What is CVE-2023-5891?: Cross-site Scripting (XSS) - Reflected in GitHub repository pkp/pkp-lib prior to 3.3.0-16.
How severe is CVE-2023-5891?: CVE-2023-5891 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-2023-5891 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-5891?: CVE-2023-5891 affects Sfu Pkp Web Application Library. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-5891?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-5891 published?: CVE-2023-5891 was published on 2023-11-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sfu:pkp_web_application_library:*:*:*:*:*:*:*:*

More vulnerabilities in Sfu Pkp Web Application Library

CVE-2023-5893 — High (CVSS 8.8): Cross-Site Request Forgery (CSRF) in GitHub repository pkp/pkp-lib prior to 3.3.0-16.
CVE-2023-5904 — Medium (CVSS 5.4): Cross-site Scripting (XSS) - Stored in GitHub repository pkp/pkp-lib prior to 3.3.0-16.
CVE-2023-5903 — Medium (CVSS 5.4): Cross-site Scripting (XSS) - Stored in GitHub repository pkp/pkp-lib prior to 3.3.0-16.
CVE-2023-5896 — Medium (CVSS 5.4): Cross-site Scripting (XSS) - Stored in GitHub repository pkp/pkp-lib prior to 3.4.0-4.
CVE-2023-5895 — Medium (CVSS 5.4): Cross-site Scripting (XSS) - DOM in GitHub repository pkp/pkp-lib prior to 3.3.0-16.
CVE-2023-5892 — Medium (CVSS 5.4): Cross-site Scripting (XSS) - Stored in GitHub repository pkp/pkp-lib prior to 3.3.0-16.

All CVEs affecting Sfu Pkp Web Application Library →

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