The sanitizeLocalUrl function in TYPO3 6.x before 6.2.15, 7.x before 7.4.0, 4.5.40, and earlier allows remote authenticated users to bypass the XSS filter and conduct cross-site scripting (XSS) attacks via a base64 encoded data URI, as demonstrated by the (1) returnUrl parameter to show_rechis.php and the (2) redirect_url parameter to index.php
Published Sep 16, 2015
3.5
LOWCVSS 2.0
EPSS 2.01%
Description
The sanitizeLocalUrl function in TYPO3 6.x before 6.2.15, 7.x before 7.4.0, 4.5.40, and earlier allows remote authenticated users to bypass the XSS filter and conduct cross-site scripting (XSS) attacks via a base64 encoded data URI, as demonstrated by the (1) returnUrl parameter to show_rechis.php and the (2) redirect_url parameter to index.php.
Affected products
No data.
- ≤ 4.5.40
- 6.0
- 6.0.1
- 6.0.2
- 6.0.3
- 6.0.4
- 6.0.5
- 6.0.6
- 6.0.7
- 6.0.8
- 6.0.9
- 6.0.10
- 6.0.11
- 6.0.12
- 6.0.13
- 6.0.14
- 6.1
- 6.1.1
- 6.1.2
- 6.1.3
- 6.1.4
- 6.1.5
- 6.1.6
- 6.1.7
- 6.1.8
- 6.1.9
- 6.2
- 6.2.0
- 6.2.0
- 6.2.0
- 6.2.1
- 6.2.2
- 6.2.3
- 6.2.4
- 6.2.5
- 6.2.6
- 6.2.7
- 6.2.8
- 6.2.9
- 6.2.10
- 6.2.11
- 6.2.12
- 6.2.13
- 6.2.14
- 7.0.0
- 7.1.0
- 7.2.0
- 7.3.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:S/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.01% (0.02006) | 80.09th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.01% (0.02006) | 78.20th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.13% (0.00125) | 29.29th | v4 (v2025.03.14) |
| Dec 12, 2024 | 4.66% (0.04664) | 92.91th | v3 (v2023.03.01) |
| Oct 10, 2024 | 4.66% (0.04664) | 92.77th | v3 (v2023.03.01) |
| Mar 7, 2023 | 6.46% (0.06458) | 92.55th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.13% (0.01132) | 56.11th | v2 (v2022.01.01) |
| Sep 22, 2022 | 1.13% (0.01132) | 54.59th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.13% (0.01132) | 52.58th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.13% (0.01132) | 30.65th | v2 (v2022.01.01) |
References (8)
- http://packetstormsecurity.com/files/133551/Typo3-CMS-6.2.14-4.5.40-Cross-Site-Scripting.html x_refsource_MISC
- http://seclists.org/fulldisclosure/2015/Sep/57 mailing-listx_refsource_FULLDISC
- http://www.securityfocus.com/archive/1/536464/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securitytracker.com/id/1033551 vdb-entryx_refsource_SECTRACK
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2015-5956.yaml
- https://github.com/advisories/GHSA-989h-wv8x-933p Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-5956
- https://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2015-009/ x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://packetstormsecurity.com/files/133551/Typo3-CMS-6.2.14-4.5.40-Cross-Site-Scripting.html | x_refsource_MISC | |
| http://seclists.org/fulldisclosure/2015/Sep/57 | mailing-listx_refsource_FULLDISC | |
| http://www.securityfocus.com/archive/1/536464/100/0/threaded | mailing-listx_refsource_BUGTRAQ | |
| http://www.securitytracker.com/id/1033551 | vdb-entryx_refsource_SECTRACK | |
| https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2015-5956.yaml | ||
| https://github.com/advisories/GHSA-989h-wv8x-933p | Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2015-5956 | ||
| https://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2015-009/ | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.