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CVE-2020-15517

MEDIUM

CVE-2020-15517 is a medium-severity (CVSS 5.4) Cross-site Scripting (XSS) vulnerability in faceted_search_project faceted search. O3 Security detects and blocks CVE-2020-15517 exploitation at runtime via eBPF exploit-chain detection and L7 egress monitoring, even on unpatched systems.

The ke_search (aka Faceted Search) extension through 2.8.2, and 3.x through 3.1.3, for TYPO3 allows XSS.

Published
Jul 7, 2020
Updated
Jun 17, 2026
Affected
0 pkgs
Patched
None yet
Exploits
None indexed

Description

The ke_search (aka Faceted Search) extension through 2.8.2, and 3.x through 3.1.3, for TYPO3 allows XSS.

Affected Products

1 product · 2 configurations
Application
faceted searchfaceted_search_project
≥ 3.0.0 && ≤ 3.1.3
range

Detection & mitigation playbook

Vendor / appliance
  1. Detect

    Inventory every faceted_search_project faceted search deployment and check each version against the affected-products list above. Because the exploit targets the running system rather than your application code, also watch for exploitation at the network and runtime layer — O3 flags the exploit behaviour from runtime telemetry and egress traffic even before a vulnerable build is confirmed.

  2. Remediation status

    No patch has shipped for CVE-2020-15517 yet — track the faceted_search_project faceted search advisory for a fixed release and apply the workarounds below in the meantime.

  3. Mitigate without a patch

    Cut exposure now: restrict the management/admin interface to trusted networks, segment the device, and apply the vendor's recommended configuration mitigations and any WAF/IPS signature. O3's runtime protection blocks the exploit chain at execution, holding the line on unpatched or end-of-life systems until you can patch.

  4. How O3 protects you

    O3 detects and blocks CVE-2020-15517 exploitation at runtime: eBPF exploit-chain detection, plus L7 egress monitoring that catches the post-exploitation callback and severs the attacker's outbound channel.

Tailored to CVE-2020-15517. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

The ke_search (aka Faceted Search) extension through 2.8.2, and 3.x through 3.1.3, for TYPO3 allows XSS.
O3 Security · Runtime Protection

Is CVE-2020-15517 being exploited in your environment?

O3's eBPF runtime sensors and L7 egress monitoring detect and block the CVE-2020-15517 exploit chain at execution — protecting unpatched and end-of-life systems until the vendor patch is applied.