Description
The wp_remote_fopen function in WordPress before 2.1 allows remote attackers to cause a denial of service (bandwidth or thread consumption) via pingback service calls with a source URI that corresponds to a large file, which triggers a long download session without a timeout constraint.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | wordpress | 2.1.0-1 | — |
| Debian 13 | wordpress | 2.1.0-1 | — |
| Debian 12 | wordpress | 2.1.0-1 | — |
| Debian 4.0 | wordpress | 2.0.8-1 | DTSA-33-1 |
Advisories 1
- DTSA-33-1 wordpress - multiple vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
References
- 20070124 Multiple Remote Vulnerabilities in Wordpress mailing-list
- 20070124 Weaknesses in Pingback Design mailing-list
- 2191 third-party-advisory