What is CVE-2018-20242?

CVE-2018-20242 is a medium-severity vulnerability in Apache Jspwiki, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-02-11.

How severe is CVE-2018-20242?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Apache Jspwiki

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.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2019-02-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.054 (92.4th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.054 · newest: 0.054 · change: 0.000

Affected products

Apache Jspwiki
Apache Software Foundation Jspwiki — versions prior to 2.10.5

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.securityfocus.com/bid/106804 (VDB Entry, Third Party Advisory, vdb-entry)
lists.apache.org/thread.html/8ee4644432c0a433c5c514a57d940cf6dcb0a0094acd97b362… (mailing-list)
lists.apache.org/thread.html/e42d6e93384d4a33e939989cd00ea2a06ccf1e7bb1e6bdd3bf… (mailing-list)
lists.apache.org/thread.html/aac253cfc33c0429b528e2fcbe82d3a42d742083c528f58d19… (mailing-list)

Frequently asked questions

What is CVE-2018-20242?: CVE-2018-20242 is a medium-severity vulnerability in Apache Jspwiki, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-02-11.
How severe is CVE-2018-20242?: Medium severity. CVSS v3 base score is 6.1 out of 10.