CVE-2026-15345 (GCVE-0-2026-15345)
Vulnerability from cvelistv5 – Published: 2026-08-16 05:27 – Updated: 2026-08-16 05:27
VLAI
EPSS
VEX
Title
ShortPixel Adaptive Images <= 3.11.5 - Missing Authorization to Authenticated (Subscriber+) Third-Party Plugin Option Modification via 'causer' Parameter
Summary
The ShortPixel Adaptive Images – WebP, AVIF, CDN, Image Optimization plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 3.11.5. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to modify configuration options of third-party plugins including ShortPixel Image Optimizer, Autoptimize, WP Rocket, Imagify, and LiteSpeed Cache, as well as the plugin's own API key and account binding. Exploitation requires the respective third-party plugins to be installed, as the impact against those plugins' settings is only reachable when those plugins are present.
Severity
4.3 (Medium)
CWE
- CWE-862 - Missing Authorization
Assigner
References
7 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| shortpixel | ShortPixel Adaptive Images – WebP, AVIF, CDN, Image Optimization |
Affected:
0 , ≤ 3.11.5
(semver)
|
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "ShortPixel Adaptive Images \u2013 WebP, AVIF, CDN, Image Optimization",
"vendor": "shortpixel",
"versions": [
{
"lessThanOrEqual": "3.11.5",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Wordfence PRISM"
}
],
"descriptions": [
{
"lang": "en",
"value": "The ShortPixel Adaptive Images \u2013 WebP, AVIF, CDN, Image Optimization plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 3.11.5. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to modify configuration options of third-party plugins including ShortPixel Image Optimizer, Autoptimize, WP Rocket, Imagify, and LiteSpeed Cache, as well as the plugin\u0027s own API key and account binding. Exploitation requires the respective third-party plugins to be installed, as the impact against those plugins\u0027 settings is only reachable when those plugins are present."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-862",
"description": "CWE-862 Missing Authorization",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-16T05:27:30.700Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/c3efae8f-ca89-4d8c-a177-6793994b3ea0?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/shortpixel-adaptive-images/tags/3.11.5/includes/actions/notice.actions.class.php#L16"
},
{
"url": "https://plugins.trac.wordpress.org/browser/shortpixel-adaptive-images/tags/3.11.5/includes/controllers/notice.class.php#L747"
},
{
"url": "https://plugins.trac.wordpress.org/browser/shortpixel-adaptive-images/tags/3.11.5/includes/actions/notice.actions.class.php#L566"
},
{
"url": "https://plugins.trac.wordpress.org/browser/shortpixel-adaptive-images/tags/3.11.5/includes/actions/notice.actions.class.php#L87"
},
{
"url": "https://plugins.trac.wordpress.org/browser/shortpixel-adaptive-images/tags/3.11.5/includes/actions/notice.actions.class.php#L614"
},
{
"url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3625451%40shortpixel-adaptive-images\u0026new=3625451%40shortpixel-adaptive-images"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-07-09T20:41:23.000Z",
"value": "Vendor Notified"
},
{
"lang": "en",
"time": "2026-08-15T16:26:13.000Z",
"value": "Disclosed"
}
],
"title": "ShortPixel Adaptive Images \u003c= 3.11.5 - Missing Authorization to Authenticated (Subscriber+) Third-Party Plugin Option Modification via \u0027causer\u0027 Parameter"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2026-15345",
"datePublished": "2026-08-16T05:27:30.700Z",
"dateReserved": "2026-07-09T20:25:55.728Z",
"dateUpdated": "2026-08-16T05:27:30.700Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2026-15345\",\"sourceIdentifier\":\"security@wordfence.com\",\"published\":\"2026-08-16T06:16:50.493\",\"lastModified\":\"2026-08-16T06:16:50.493\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The ShortPixel Adaptive Images \u2013 WebP, AVIF, CDN, Image Optimization plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 3.11.5. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to modify configuration options of third-party plugins including ShortPixel Image Optimizer, Autoptimize, WP Rocket, Imagify, and LiteSpeed Cache, as well as the plugin\u0027s own API key and account binding. Exploitation requires the respective third-party plugins to be installed, as the impact against those plugins\u0027 settings is only reachable when those plugins are present.\"}],\"affected\":[{\"source\":\"security@wordfence.com\",\"affectedData\":[{\"vendor\":\"shortpixel\",\"product\":\"ShortPixel Adaptive Images \u2013 WebP, AVIF, CDN, Image Optimization\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"0\",\"lessThanOrEqual\":\"3.11.5\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@wordfence.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N\",\"baseScore\":4.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":1.4}]},\"weaknesses\":[{\"source\":\"security@wordfence.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-862\"}]}],\"references\":[{\"url\":\"https://plugins.trac.wordpress.org/browser/shortpixel-adaptive-images/tags/3.11.5/includes/actions/notice.actions.class.php#L16\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/shortpixel-adaptive-images/tags/3.11.5/includes/actions/notice.actions.class.php#L566\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/shortpixel-adaptive-images/tags/3.11.5/includes/actions/notice.actions.class.php#L614\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/shortpixel-adaptive-images/tags/3.11.5/includes/actions/notice.actions.class.php#L87\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/shortpixel-adaptive-images/tags/3.11.5/includes/controllers/notice.class.php#L747\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3625451%40shortpixel-adaptive-images\u0026new=3625451%40shortpixel-adaptive-images\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://www.wordfence.com/threat-intel/vulnerabilities/id/c3efae8f-ca89-4d8c-a177-6793994b3ea0?source=cve\",\"source\":\"security@wordfence.com\"}]}}"
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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