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CVE-2003-1025
Internet Explorer 5.01 through 6 SP1 allows remote attackers to spoof the domain of a URL via a "%01" character before an @ sign in the…
Medium4.3EPSS 26.9%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
Internet Explorer 5.01 through 6 SP1 allows remote attackers to spoof the domain of a URL via a "%01" character before an @ sign in the user@domain portion of the URL, which hides the rest of the URL, including the real site, in the address bar, aka the "Improper URL Canonicalization Vulnerability."
Timeline
ID reserved
By mitre
Published
- 21 years later
· 21 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
- EPSS (exploitation in 30 days)
- 26.9% · top 1.9% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Weakness
Affected products
n/a
- affected n/a
References (13)
- oval:org.mitre.oval:def:510 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- oval:org.mitre.oval:def:526 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- VU#652278 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- 20031209 Internet Explorer URL parsing vulnerability (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- oval:org.mitre.oval:def:513 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- ie-domain-url-spoofing(13935) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- oval:org.mitre.oval:def:491 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- TA04-033A (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
- oval:org.mitre.oval:def:512 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- oval:org.mitre.oval:def:490 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- MS04-004 (opens in a new tab)vendor-advisoryx_refsource_MSx_transferred
- http://www.zapthedingbat.com/security/ex01/vun1.htm (opens in a new tab)x_refsource_MISCx_transferred
- oval:org.mitre.oval:def:511 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2003-1025)Record last updated .