CRLF injection vulnerability in index.php in ExpressionEngine 1.2.1 and earlier allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via the URL parameter
Published Jan 10, 2008
4.3
MEDIUMCVSS 2.0
EPSS 1.24%
Description
CRLF injection vulnerability in index.php in ExpressionEngine 1.2.1 and earlier allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via the URL parameter.
Affected products
No data.
- ≤ 1.2.1
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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.24% (0.01243) | 68.14th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.24% (0.01243) | 65.25th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.52% (0.00516) | 64.68th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.53% (0.00535) | 77.95th | v3 (v2023.03.01) |
| Jun 13, 2024 | 0.48% (0.00478) | 75.91th | v3 (v2023.03.01) |
| May 6, 2024 | 0.45% (0.00445) | 74.80th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.42% (0.00420) | 73.49th | v3 (v2023.03.01) |
| Jan 15, 2024 | 0.42% (0.00420) | 71.46th | v3 (v2023.03.01) |
| May 8, 2023 | 0.39% (0.00388) | 69.19th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.55% (0.00550) | 73.99th | 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://lists.grok.org.uk/pipermail/full-disclosure/2008-January/059439.html mailing-listx_refsource_FULLDISC
- http://securityreason.com/securityalert/3539 third-party-advisoryx_refsource_SREASON
- http://securityvulns.ru/Sdocument472.html x_refsource_MISC
- http://websecurity.com.ua/1454/ x_refsource_MISC
- http://www.securityfocus.com/archive/1/485786/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/27128 vdb-entryx_refsource_BID
| Link | Providers | Tags |
|---|---|---|
| http://lists.grok.org.uk/pipermail/full-disclosure/2008-January/059439.html | mailing-listx_refsource_FULLDISC | |
| http://securityreason.com/securityalert/3539 | third-party-advisoryx_refsource_SREASON | |
| http://securityvulns.ru/Sdocument472.html | x_refsource_MISC | |
| http://websecurity.com.ua/1454/ | x_refsource_MISC | |
| http://www.securityfocus.com/archive/1/485786/100/0/threaded | mailing-listx_refsource_BUGTRAQ | |
| http://www.securityfocus.com/bid/27128 | vdb-entryx_refsource_BID |
Change history (0)
No recorded changes yet.