Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-7733-hjv6-4h47
Advisory ID github_osv/GHSA-7733-hjv6-4h47
Aliases CVE-2020-15241
Summary Cross-Site Scripting in ternary conditional operator > ### Meta > * CVSS: `CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N/E:F/RL:O/RC:C`(5.0) > * CWE-79 --- :information_source:  This vulnerability has been fixed in May 2019 already, CVE and GHSA were assigned later in October 2020 --- ### Problem It has been discovered that the Fluid Engine (package `typo3fluid/fluid`) is vulnerable to cross-site scripting when making use of the ternary conditional operator in templates like the following. ``` {showFullName ? fullName : defaultValue} ``` ### Solution Update to versions 2.0.5, 2.1.4, 2.2.1, 2.3.5, 2.4.1, 2.5.5 or 2.6.1 of this `typo3fluid/fluid` package that fix the problem described. Updated versions of this package are bundled in following TYPO3 (`typo3/cms-core`) releases: * TYPO3 v8.7.25 (using `typo3fluid/fluid` v2.5.5) * TYPO3 v9.5.6 (using `typo3fluid/fluid` v2.6.1) ### Credits Thanks to Bill Dagou who reported this issue and to TYPO3 core merger Claus Due who fixed the issue. ### References * [TYPO3-CORE-SA-2019-013](https://typo3.org/security/advisory/typo3-core-sa-2019-013)
Status Published
Exploitability 0.5
Weighted Severity 4.2
Risk 2.1
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (2)
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-601 URL Redirection to Untrusted Site ('Open Redirect')
System Score Found at
cvssv3.1 4.7 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/10/GHSA-7733-hjv6-4h47/GHSA-7733-hjv6-4h47.json
generic_textual MODERATE
Reference id Reference type URL
https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2020-15241.yaml
https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2020-15241.yaml
https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3fluid/fluid/CVE-2020-15241.yaml
https://github.com/TYPO3/Fluid
https://github.com/TYPO3/Fluid/commit/9ef6a8ffff2e812025fc0701b4ce72eea6911a3d
https://typo3.org/security/advisory/typo3-core-sa-2019-013
CVE-2020-15241 https://nvd.nist.gov/vuln/detail/CVE-2020-15241
GHSA-7733-hjv6-4h47 https://github.com/TYPO3/Fluid/security/advisories/GHSA-7733-hjv6-4h47
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/10/GHSA-7733-hjv6-4h47/GHSA-7733-hjv6-4h47.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

There are no SSVC decisions available.