XSS in TYPO3 Fluid
CVE-2020-15241
TYPO3 Fluid Engine (package `typo3fluid/fluid`) before versions 2.0.5, 2.1.4, 2.2.1, 2.3.5, 2.4.1, 2.5.5 or 2.6.1 is vulnerable to cross-site scripting when making use of the ternary conditional operator in templates like `{showFullName ? fullName : defaultValue}`. Updated versions of this package are bundled in following TYPO3 (`typo3/cms-core`) versions as well: TYPO3 v8.7.25 (using `typo3fluid/fluid` v2.5.4) and TYPO3 v9.5.6 (using `typo3fluid/fluid` v2.6.1).
Vulnerability class: Open Redirect
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.010 (60.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 60.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- TYPO3 Fluid — versions >= 2.0.0, < 2.0.5, >= 2.1.0, < 2.1.4, >= 2.2.0, < 2.2.1
- TYPO3 Fluid Engine
- TYPO3 — versions 8.7.25, 9.5.6
Weakness classification (CWE)
References
- github.com/TYPO3/Fluid/security/advisories/GHSA-7733-hjv6-4h47 (Exploit, Third Party Advisory)
- github.com/TYPO3/Fluid/commit/9ef6a8ffff2e812025fc0701b4ce72eea6911a3d (Patch, Third Party Advisory)
- typo3.org/security/advisory/typo3-core-sa-2019-013 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-15241?
- CVE-2020-15241 is a medium-severity vulnerability in TYPO3 Fluid, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 4.7/10. Published 2020-10-08.
- How severe is CVE-2020-15241?
- Medium severity. CVSS v3 base score is 4.7 out of 10.