GHSA-7733-hjv6-4h47
Cross-Site Scripting in ternary conditional operator
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Packagist | typo3fluid/fluid | >= 2.0.0, < 2.0.5 | 2.0.5 |
| Packagist | typo3fluid/fluid | >= 2.1.0, < 2.1.4 | 2.1.4 |
| Packagist | typo3fluid/fluid | >= 2.2.0, < 2.2.1 | 2.2.1 |
| Packagist | typo3fluid/fluid | >= 2.3.0, < 2.3.5 | 2.3.5 |
| Packagist | typo3fluid/fluid | >= 2.4.0, < 2.4.1 | 2.4.1 |
| Packagist | typo3fluid/fluid | >= 2.5.0, < 2.5.5 | 2.5.5 |
| Packagist | typo3fluid/fluid | >= 2.6.0, < 2.6.1 | 2.6.1 |
| Packagist | typo3/cms-core | >= 8.0.0, < 8.7.25 | 8.7.25 |
| Packagist | typo3/cms-core | >= 9.0.0, < 9.5.6 | 9.5.6 |
| Packagist | typo3/cms | >= 8.0.0, < 8.7.25 | 8.7.25 |
| Packagist | typo3/cms | >= 9.0.0, < 9.5.6 | 9.5.6 |
Details
As written in the advisory (Markdown source, shown as plain text).
> ### 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)
References
External links from the advisory. They lead to third-party sites.
- https://github.com/TYPO3/Fluid/security/advisories/GHSA-7733-hjv6-4h47
- https://nvd.nist.gov/vuln/detail/CVE-2020-15241
- https://github.com/TYPO3/Fluid/commit/9ef6a8ffff2e812025fc0701b4ce72eea6911a3d
- 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://typo3.org/security/advisory/typo3-core-sa-2019-013