CVE-2026-12954 (GCVE-0-2026-12954)
Vulnerability from cvelistv5 – Published: 2026-09-18 07:40 – Updated: 2026-09-18 07:40
VLAI
EPSS
VEX
Title
Mapster WP Maps <= 1.23.0 - Authenticated (Subscriber+) Arbitrary User Meta Write via 'acf-photo-gallery-groups' Parameter
Summary
The Mapster WP Maps plugin for WordPress is vulnerable to Arbitrary User Meta Write in all versions up to, and including, 1.23.0 via the `my_profile_update()` function. This is due to the function performing no nonce verification, no capability check, and no allowlist validation on the meta key supplied via the `acf-photo-gallery-groups` POST parameter before passing both the meta key and its corresponding value directly to `update_user_meta()`. This makes it possible for authenticated attackers, with Subscriber-level access and above, to update arbitrary user meta values, though privilege escalation is not possible.
Severity
8.8 (High)
CWE
- CWE-20 - Improper Input Validation
Assigner
References
6 references
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| mapster | Mapster WP Maps |
Affected:
0 , ≤ 1.23.0
(semver)
|
guessed |
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"providerMetadata": {
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"shortName": "Wordfence"
},
"references": [
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"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/a70757f7-63a0-452a-a078-0fb7f82844b6?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/mapster-wp-maps/tags/1.21.0/includes/acf-photo-gallery-field/includes/acf_photo_gallery_save.php#L47"
},
{
"url": "https://plugins.trac.wordpress.org/browser/mapster-wp-maps/tags/1.23.0/includes/acf-photo-gallery-field/includes/acf_photo_gallery_save.php#L47"
},
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"url": "https://plugins.trac.wordpress.org/browser/mapster-wp-maps/tags/1.23.0/includes/acf-photo-gallery-field/includes/acf_photo_gallery_save.php#L43"
},
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"url": "https://plugins.trac.wordpress.org/browser/mapster-wp-maps/tags/1.21.0/includes/acf-photo-gallery-field/includes/acf_photo_gallery_save.php#L43"
},
{
"url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3611280%40mapster-wp-maps\u0026new=3611280%40mapster-wp-maps"
}
],
"timeline": [
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"lang": "en",
"time": "2026-06-22T21:33:49.000Z",
"value": "Vendor Notified"
},
{
"lang": "en",
"time": "2026-09-17T19:14:56.000Z",
"value": "Disclosed"
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],
"title": "Mapster WP Maps \u003c= 1.23.0 - Authenticated (Subscriber+) Arbitrary User Meta Write via \u0027acf-photo-gallery-groups\u0027 Parameter"
}
},
"cveMetadata": {
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"datePublished": "2026-09-18T07:40:02.971Z",
"dateReserved": "2026-06-22T21:18:38.522Z",
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],
"source": "security@wordfence.com"
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"cveTags": [],
"descriptions": [
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}
],
"id": "CVE-2026-12954",
"lastModified": "2026-09-18T13:23:37.403",
"metrics": {
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"integrityImpact": "HIGH",
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"references": [
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"url": "https://plugins.trac.wordpress.org/browser/mapster-wp-maps/tags/1.21.0/includes/acf-photo-gallery-field/includes/acf_photo_gallery_save.php#L43"
},
{
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},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/mapster-wp-maps/tags/1.23.0/includes/acf-photo-gallery-field/includes/acf_photo_gallery_save.php#L43"
},
{
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},
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}
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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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