CVE-2026-18051 (GCVE-0-2026-18051)
Vulnerability from cvelistv5
Published
2026-08-19 06:00
Modified
2026-08-19 16:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
The W3 Total Cache WordPress plugin before 2.10.5 does not properly validate the request path it uses to build cache file names, allowing unauthenticated attackers to write a file into any existing directory on the server, inside or outside the web root, overwriting whatever occupies the target name.
On Apache, the same flaw overwrites the site's .htaccess files, which breaks the site and can strip hardening rules that other security measures rely on.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
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Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Unknown | W3 Total Cache |
Version: 0 ≤ |
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"integrityImpact": "HIGH",
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"scope": "CHANGED",
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"source": {
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"title": "W3 Total Cache \u003c 2.10.5 - Unauthenticated Arbitrary Directory File Write and .htaccess Overwrite via Path Traversal in the Page Cache Key",
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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