What is CVE-2018-7303?

CVE-2018-7303 is a medium-severity vulnerability in Tiki Tikiwiki Cms\/groupware, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2018-02-21.

How severe is CVE-2018-7303?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Tiki Tikiwiki Cms\/groupware

CVE-2018-7303

The Calendar component in Tiki 17.1 allows HTML injection.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-02-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (43.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Tiki Tikiwiki Cms\/groupware — versions 17.1

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

websecnerd.blogspot.in/2018/01/tiki-wiki-cms-groupware-17.html (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-7303?: CVE-2018-7303 is a medium-severity vulnerability in Tiki Tikiwiki Cms\/groupware, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2018-02-21.
How severe is CVE-2018-7303?: Medium severity. CVSS v3 base score is 5.4 out of 10.