How severe is CVE-2025-24853?

CVE-2025-24853 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2025-24853 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-24853?

CVE-2025-24853 affects Apache Jspwiki. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-24853?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-24853 have an EU (EUVD) identifier?

Yes. CVE-2025-24853 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-23255.

When was CVE-2025-24853 published?

CVE-2025-24853 was published on 2025-07-31 and last updated on 2026-06-17.

CVE-2025-24853

CVE-2025-24853 is a high-severity vulnerability in Apache Jspwiki with a CVSS 3.x base score of 7.5. 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: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-23255
Weakness: CWE-79
Affected product: Apache Jspwiki
Published: 2025-07-31
Last modified: 2026-06-17

Description

A carefully crafted request when creating a header link using the wiki markup syntax, which could allow the attacker to execute javascript in the victim's browser and get some sensitive information about the victim. Further research by the JSPWiki team showed that the markdown parser allowed this kind of attack too. Apache JSPWiki users should upgrade to 2.12.3 or later.

Frequently asked questions

What is CVE-2025-24853?: A carefully crafted request when creating a header link using the wiki markup syntax, which could allow the attacker to execute javascript in the victim's browser and get some sensitive information about the victim. Further research by the JSPWiki team showed that the markdown parser allowed this kind of attack too. Apache JSPWiki users should upgrade to 2.12.3 or later.
How severe is CVE-2025-24853?: CVE-2025-24853 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2025-24853 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-24853?: CVE-2025-24853 affects Apache Jspwiki. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-24853?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-24853 have an EU (EUVD) identifier?: Yes. CVE-2025-24853 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-23255.
When was CVE-2025-24853 published?: CVE-2025-24853 was published on 2025-07-31 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:apache:jspwiki:*:*:*:*:*:*:*:*

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