Cross-site scripting (XSS) vulnerability in the wikitext parser in MediaWiki 1.17.x before 1.17.3 and 1.18.x before 1.18.2 allows remote attackers to inject arbitrary web script or HTML via a crafted page with "forged strip item markers," as demonstrated using the CharInsert extension
Published Sep 9, 2012
4.3
MEDIUMCVSS 2.0
EPSS 2.38%
Description
Cross-site scripting (XSS) vulnerability in the wikitext parser in MediaWiki 1.17.x before 1.17.3 and 1.18.x before 1.18.2 allows remote attackers to inject arbitrary web script or HTML via a crafted page with "forged strip item markers," as demonstrated using the CharInsert extension.
Affected products
No data.
Configuration 1
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:N/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 | 2.38% (0.02379) | 83.27th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.38% (0.02379) | 81.64th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.45% (0.00454) | 61.74th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.32% (0.00317) | 71.28th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.32% (0.00317) | 69.61th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.32% (0.00317) | 65.66th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.78% (0.01776) | 76.86th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.78% (0.01776) | 76.81th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.78% (0.01776) | 74.78th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.78% (0.01776) | 53.99th | v2 (v2022.01.01) |
References (9)
- http://lists.wikimedia.org/pipermail/mediawiki-announce/2012-March/000109.html mailing-listx_refsource_MLISTVendor Advisory
- http://lists.wikimedia.org/pipermail/mediawiki-announce/2012-March/000110.html mailing-listx_refsource_MLISTVendor Advisory
- http://osvdb.org/80363 vdb-entryx_refsource_OSVDB
- http://secunia.com/advisories/48504 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.openwall.com/lists/oss-security/2012/03/22/9 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2012/03/24/1 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/52689 vdb-entryx_refsource_BID
- https://bugzilla.wikimedia.org/show_bug.cgi?id=35315 x_refsource_CONFIRM
- https://exchange.xforce.ibmcloud.com/vulnerabilities/74288 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://lists.wikimedia.org/pipermail/mediawiki-announce/2012-March/000109.html | mailing-listx_refsource_MLISTVendor Advisory | |
| http://lists.wikimedia.org/pipermail/mediawiki-announce/2012-March/000110.html | mailing-listx_refsource_MLISTVendor Advisory | |
| http://osvdb.org/80363 | vdb-entryx_refsource_OSVDB | |
| http://secunia.com/advisories/48504 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://www.openwall.com/lists/oss-security/2012/03/22/9 | mailing-listx_refsource_MLIST | |
| http://www.openwall.com/lists/oss-security/2012/03/24/1 | mailing-listx_refsource_MLIST | |
| http://www.securityfocus.com/bid/52689 | vdb-entryx_refsource_BID | |
| https://bugzilla.wikimedia.org/show_bug.cgi?id=35315 | x_refsource_CONFIRM | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/74288 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.