index.php in ActiveCampaign KnowledgeBuilder 2.4 and earlier allows remote attackers to cause a denial of service (CPU consumption) via an invalid category parameter, which causes a large number of SQL queries to be processed
Published Nov 26, 2005
7.8
HIGHCVSS 2.0
EPSS 1.85%
Description
index.php in ActiveCampaign KnowledgeBuilder 2.4 and earlier allows remote attackers to cause a denial of service (CPU consumption) via an invalid category parameter, which causes a large number of SQL queries to be processed.
Affected products
No data.
- 2.4
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:L/Au:N/C:N/I:N/A:C
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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.85% (0.01845) | 78.26th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.85% (0.01845) | 76.20th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.87% (0.00866) | 73.53th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.26% (0.01255) | 86.16th | v3 (v2023.03.01) |
| May 22, 2024 | 1.36% (0.01364) | 86.24th | v3 (v2023.03.01) |
| Apr 21, 2023 | 1.36% (0.01364) | 84.23th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.28% (0.01280) | 83.58th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
No CWE recorded.
References (4)
- http://pridels0.blogspot.com/2005/11/activecampaign-knowledgebuilder-vuln.html x_refsource_MISC
- http://secunia.com/advisories/17732 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.osvdb.org/21098 vdb-entryx_refsource_OSVDB
- http://www.vupen.com/english/advisories/2005/2587 vdb-entryx_refsource_VUPEN
| Link | Providers | Tags |
|---|---|---|
| http://pridels0.blogspot.com/2005/11/activecampaign-knowledgebuilder-vuln.html | x_refsource_MISC | |
| http://secunia.com/advisories/17732 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://www.osvdb.org/21098 | vdb-entryx_refsource_OSVDB | |
| http://www.vupen.com/english/advisories/2005/2587 | vdb-entryx_refsource_VUPEN |
Change history (0)
No recorded changes yet.