How severe is CVE-2023-53882?

CVE-2023-53882 has a CVSS 4.0 base score of 5.1, rated medium severity.

Is CVE-2023-53882 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.

How do I fix CVE-2023-53882?

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

Does CVE-2023-53882 have an EU (EUVD) identifier?

Yes. CVE-2023-53882 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-203432.

When was CVE-2023-53882 published?

CVE-2023-53882 was published on 2025-12-15 and last updated on 2026-06-17.

CVE-2023-53882

CVE-2023-53882 is a medium-severity vulnerability with a CVSS 4.0 base score of 5.1. 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 4.0 base score 5.1)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-203432
Weakness: CWE-79
Published: 2025-12-15
Last modified: 2026-06-17

Description

JLex GuestBook 1.6.4 contains a reflected cross-site scripting vulnerability in the 'q' URL parameter that allows attackers to inject malicious scripts. Attackers can craft malicious links with XSS payloads to steal session tokens or execute arbitrary JavaScript in victims' browsers.

Frequently asked questions

What is CVE-2023-53882?: JLex GuestBook 1.6.4 contains a reflected cross-site scripting vulnerability in the 'q' URL parameter that allows attackers to inject malicious scripts. Attackers can craft malicious links with XSS payloads to steal session tokens or execute arbitrary JavaScript in victims' browsers.
How severe is CVE-2023-53882?: CVE-2023-53882 has a CVSS 4.0 base score of 5.1, rated medium severity.
Is CVE-2023-53882 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.
How do I fix CVE-2023-53882?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-53882 have an EU (EUVD) identifier?: Yes. CVE-2023-53882 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-203432.
When was CVE-2023-53882 published?: CVE-2023-53882 was published on 2025-12-15 and last updated on 2026-06-17.

References

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

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CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

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