How severe is CVE-2018-20242?

CVE-2018-20242 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2018-20242 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-20242?

CVE-2018-20242 affects Apache Jspwiki. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-20242?

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

When was CVE-2018-20242 published?

CVE-2018-20242 was published on 2019-02-11 and last updated on 2026-06-17.

CVE-2018-20242

CVE-2018-20242 is a medium-severity vulnerability in Apache Jspwiki with a CVSS 3.x base score of 6.1. 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 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 5% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Apache Jspwiki
Published: 2019-02-11
Last modified: 2026-06-17

Description

A carefully crafted URL could trigger an XSS vulnerability on Apache JSPWiki, from versions up to 2.10.5, which could lead to session hijacking.

Frequently asked questions

What is CVE-2018-20242?: A carefully crafted URL could trigger an XSS vulnerability on Apache JSPWiki, from versions up to 2.10.5, which could lead to session hijacking.
How severe is CVE-2018-20242?: CVE-2018-20242 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2018-20242 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-20242?: CVE-2018-20242 affects Apache Jspwiki. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-20242?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-20242 published?: CVE-2018-20242 was published on 2019-02-11 and last updated on 2026-06-17.

References

Affected products (1)

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

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