Bugzilla 2.20rc1 through 2.20 and 2.21.1, when using RSS 1.0, allows remote attackers to conduct cross-site scripting (XSS) attacks via a title element with HTML encoded sequences such as ">", which are automatically decoded by some RSS readers
Published May 16, 2006
4.3
MEDIUMCVSS 2.0
EPSS 1.54%
Description
Bugzilla 2.20rc1 through 2.20 and 2.21.1, when using RSS 1.0, allows remote attackers to conduct cross-site scripting (XSS) attacks via a title element with HTML encoded sequences such as ">", which are automatically decoded by some RSS readers. NOTE: this issue is not in Bugzilla itself, but rather due to design or documentation inconsistencies within RSS, or implementation vulnerabilities in RSS readers. While this issue normally would not be included in CVE, it is being identified since the Bugzilla developers have addressed it.
Affected products
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 2, 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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 1.54% (0.01537) | 73.96th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.54% (0.01537) | 71.50th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.66% (0.00661) | 69.42th | v4 (v2025.03.14) |
| Dec 17, 2024 | 0.15% (0.00151) | 51.73th | v3 (v2023.03.01) |
| Dec 12, 2024 | 2.14% (0.02140) | 89.69th | v3 (v2023.03.01) |
| Nov 26, 2023 | 1.52% (0.01519) | 85.55th | v3 (v2023.03.01) |
| Oct 9, 2023 | 2.14% (0.02140) | 87.97th | v3 (v2023.03.01) |
| Apr 27, 2023 | 1.91% (0.01911) | 86.81th | v3 (v2023.03.01) |
| Mar 20, 2023 | 1.94% (0.01940) | 86.83th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.01% (0.02013) | 87.08th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
References (6)
- http://marc.info/?l=bugtraq&m=112818466125484&w=2 mailing-listx_refsource_BUGTRAQ
- http://secunia.com/advisories/18979 third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory
- http://www.bugzilla.org/security/2.18.4 x_refsource_CONFIRMPatchVendor Advisory
- http://www.osvdb.org/23379 vdb-entryx_refsource_OSVDB
- https://bugzilla.mozilla.org/show_bug.cgi?id=313441 x_refsource_CONFIRMPatch
- https://exchange.xforce.ibmcloud.com/vulnerabilities/24820 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://marc.info/?l=bugtraq&m=112818466125484&w=2 | mailing-listx_refsource_BUGTRAQ | |
| http://secunia.com/advisories/18979 | third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory | |
| http://www.bugzilla.org/security/2.18.4 | x_refsource_CONFIRMPatchVendor Advisory | |
| http://www.osvdb.org/23379 | vdb-entryx_refsource_OSVDB | |
| https://bugzilla.mozilla.org/show_bug.cgi?id=313441 | x_refsource_CONFIRMPatch | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/24820 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.