WP Compress – Image Optimizer [All-In-One] <= 6.10.33 - Unauthenticated Directory Traversal via css

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Summary

CVECVE-2023-6699
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-01-11 07:15:09 UTC
Updated2026-04-08 19:18:58 UTC
DescriptionThe WP Compress – Image Optimizer [All-In-One] plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 6.10.33 via the css parameter. This makes it possible for unauthenticated attackers to read the contents of arbitrary files on the server, which can contain sensitive information.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS: 0.042390000 probability, percentile 0.888080000 (date 2026-04-22)

Problem Types: CWE-24 | CWE-22 | CWE-24 CWE-24 Path Traversal: '../filedir'

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
3.1[email protected]Secondary9.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
3.1CNADECLARED9.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Wpcompress Wp Compress All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Aresit WP Compress Instant Performance Speed Optimization affected 6.10.33 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/changeset af854a3a-2127-422b-91ae-364da2661108 plugins.trac.wordpress.org Patch
www.wordfence.com/threat-intel/vulnerabilities/id/defb87dd-bf5f-411f-b948-69933... af854a3a-2127-422b-91ae-364da2661108 www.wordfence.com Product, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Krzysztof Zając (en)

Additional Advisory Data

SourceTimeEvent
CNA2024-01-03T00:00:00.000ZDisclosed

Legacy QID Mappings

  • 150862 WordPress Compress - Image Optimizer Plugin: Directory Traversal Vulnerability (CVE-2023-6699)
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