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MEDIUM severity

CVE-2025-43717 — http_request2

MEDIUMFix: pear/HTTP_Request2@07925aa

CVE-2025-43717 is a medium-severity (CVSS 5.4) CWE-531 vulnerability in pear/http_request2. A fix is available for pear/http_request2 — see the affected versions and patch details below.

PEAR HTTP_Request2 vulnerable to Cross-site Scripting

Also known asGHSA-w7gh-f2fm-9q8r
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Oct 24, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2025-43717.

EPSS Exploitation Probability

via FIRST.org ↗
0.3%probability of exploitation in next 30 days
Lower Risk+0.01%
Lower risk than most CVEs26th percentile — riskier than 26% of all scored CVEsHighest risk
0.00%0.31%0.62%0.94%0.3%0.3%Apr 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐘pear/http_request2

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

In PEAR HTTP_Request2 before 2.7.0, multiple files in the tests directory, notably tests/_network/getparameters.php and tests/_network/postparameters.php, reflect any GET or POST parameters, leading to XSS.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistpear/http_request2all versions2.7.0composer require pear/http_request2:^2.7.0

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for pear/http_request2, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update pear/http_request2 to 2.7.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-43717 is resolved across your whole dependency graph.

  3. Workarounds

    Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

In PEAR HTTP_Request2 before 2.7.0, multiple files in the tests directory, notably tests/_network/getparameters.php and tests/_network/postparameters.php, reflect any GET or POST parameters, leading to XSS.
O3 Security · Impact-Aware SCA

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CVE-2025-43717: http_request2 XSS — Fixed in 2.7.0