CVE-2002-0840 Apache HTTP server
| Affected software | Apache HTTP server |
|---|---|
| Severity | 6.8 Medium CVSS 2.0 |
| Published | 11 Oct 2002 |
| Updated | 16 Jun 2026 |
Description
Cross-site scripting (XSS) vulnerability in the default error page of Apache 2.0 before 2.0.43, and 1.3.x up to 1.3.26, when UseCanonicalName is "Off" and support for wildcard DNS is present, allows remote attackers to execute script as other web page visitors via the Host: header, a different vulnerability than CAN-2002-1157.
Exploitation status
Working exploit published
A reviewed exploit catalogue lists ready-to-run exploit code for this CVE.
Exploitation status
- CISA KEV not listed
- VulnCheck KEV not listed
- CISA Vulnrichment no assessment published
- Indexed PoC 1 indexed Published artifacts you can open, in Exploit-DB; first seen 2002-10-02.
- EPSS 95% chance in 30 days A model's forecast, not a report of exploitation. Higher than 99.9% of all scored CVEs.
| Index | Artifact | Stars | First seen |
|---|---|---|---|
| Exploit-DB | Apache 1.3/2.0.x - Server Side Include Cross-Site Scripting | 2002-10-02 |
Waratek protection
A Java vulnerability, but not one Waratek protects. It affects only Java on a user's desktop (applets, Web Start, JavaFX, the installer), sits in a product the Waratek agent can't be installed into, or is in a package we don't expect in business applications. The decision below says which.
- Protection none
- Action not pursued none
- Review human Researcher
- Record active
| Decided by | Manual classification of this CVE in the legacy dataset |
|---|---|
| Finding | A manual classification set this CVE's status to Outside Waratek scope, but the CVE names a tracked product. |
Affected software and releases
Products and versions
5 products, 47 version entries| Source | Vendor | Product | Scheme | Affected versions |
|---|---|---|---|---|
| nvd | apache | http server | generic | 1.3 · 1.3.1 · 1.3.3 · 1.3.4 · 1.3.6 · 1.3.9 · 1.3.11 · 1.3.12 · 1.3.14 · 1.3.17 · 1.3.18 · 1.3.19 · 1.3.20 · 1.3.22 · 1.3.23 · 1.3.24 · 1.3.25 · 1.3.26 · 2.0 · 2.0.28 · 2.0.32 · 2.0.35 · 2.0.36 · 2.0.37 · 2.0.38 · 2.0.39 · 2.0.40 · 2.0.41 · 2.0.42 |
| nvd | oracle | application server | generic | 1.0.2 · 1.0.2.1s · 1.0.2.2 · 9.0.2 · 9.0.2.1 · 9.0.2:r2 |
| nvd | oracle | database server | generic | 8.1.7 · 9.2.1 · 9.2.2 |
| nvd | oracle | oracle8i | generic | 8.1.7 · 8.1.7_.0.0_enterprise · 8.1.7.1 · 8.1.7_.1.0_enterprise |
| nvd | oracle | oracle9i | generic | 9.0 · 9.0.1 · 9.0.1.2 · 9.0.1.3 · 9.0.2 |
Earlier manual review
A reviewer classified this CVE in an older dataset. We kept the labels and products below, but not the reviewer's reasoning.
## Manual Classification Context **Products:** HTTPD
References
Timeline
Timeline
| Published | 2002-10-11 | By the CVE Program. |
|---|---|---|
| NVD record modified | 2026-06-16 | NVD's own last-modified date for this record. |