peterschulznl WP Data Access Plugin up to 5.5.89 on WordPress Write Endpoint key/val improper authorization

Summaryinfo

A vulnerability identified as critical has been detected in peterschulznl WP Data Access Plugin up to 5.5.89. The affected element is an unknown function of the component Write Endpoint. The manipulation of the argument key/val leads to improper authorization. This vulnerability is documented as CVE-2026-118267. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in peterschulznl WP Data Access Plugin up to 5.5.89 and classified as critical. This issue affects some unknown functionality of the component Write Endpoint. The manipulation of the argument key/val with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The WP Data Access – App Builder for Tables, Forms, Dashboards, Charts & Maps plugin for WordPress is vulnerable to Incorrect Authorization leading to Privilege Escalation in all versions up to, and including, 5.5.89 This is due to the plugin's write endpoints (`wpda/app/update`, `wpda/app/delete`, `wpda/app/insert`) passing the attacker-supplied `key` and `val` parameters directly to `$wpdadb->update`, `$wpdadb->delete`, and `$wpdadb->insert` without enforcing the container's row-filter (`defaultWhere`) or per-column allow-list (`isSelected`) restrictions that are correctly applied on the read endpoints. This makes it possible for authenticated attackers, with Subscriber-level access and above, to write to arbitrary rows and columns outside the configured restrictions — including overwriting the `user_pass` field of the WordPress administrator account in `wp_users` — and subsequently authenticate as the administrator, achieving full site takeover. Exploitation requires an administrator to have published a Data App that enables write transactions (update, delete, or insert) for Subscriber-level or anonymous users, which is an explicitly advertised use-case of the plugin. Exploitation by unauthenticated attackers requires that the administrator has published a Data App whose rest_api.authorization is 'anonymous' and whose container has transactions.update (or delete/insert) enabled. On a default installation, where that is not configured, the vulnerability requires attackers with subscriber-level access and above.

The advisory is shared at wordfence.com. The identification of this vulnerability is CVE-2026-118267 since 10/27/2026. The exploitation is known to be easy. The attack may be initiated remotely. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/07/2026). MITRE ATT&CK project uses the attack technique T1548.002 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• WordPress Plugin

Vendor

• peterschulznl

Name

• WP Data Access Plugin

Version

• 5.5.0
• 5.5.1
• 5.5.2
• 5.5.3
• 5.5.4
• 5.5.5
• 5.5.6
• 5.5.7
• 5.5.8
• 5.5.9
• 5.5.10
• 5.5.11
• 5.5.12
• 5.5.13
• 5.5.14
• 5.5.15
• 5.5.16
• 5.5.17
• 5.5.18
• 5.5.19
• 5.5.20
• 5.5.21
• 5.5.22
• 5.5.23
• 5.5.24
• 5.5.25
• 5.5.26
• 5.5.27
• 5.5.28
• 5.5.29
• 5.5.30
• 5.5.31
• 5.5.32
• 5.5.33
• 5.5.34
• 5.5.35
• 5.5.36
• 5.5.37
• 5.5.38
• 5.5.39
• 5.5.40
• 5.5.41
• 5.5.42
• 5.5.43
• 5.5.44
• 5.5.45
• 5.5.46
• 5.5.47
• 5.5.48
• 5.5.49
• 5.5.50
• 5.5.51
• 5.5.52
• 5.5.53
• 5.5.54
• 5.5.55
• 5.5.56
• 5.5.57
• 5.5.58
• 5.5.59
• 5.5.60
• 5.5.61
• 5.5.62
• 5.5.63
• 5.5.64
• 5.5.65
• 5.5.66
• 5.5.67
• 5.5.68
• 5.5.69
• 5.5.70
• 5.5.71
• 5.5.72
• 5.5.73
• 5.5.74
• 5.5.75
• 5.5.76
• 5.5.77
• 5.5.78
• 5.5.79
• 5.5.80
• 5.5.81
• 5.5.82
• 5.5.83
• 5.5.84
• 5.5.85
• 5.5.86
• 5.5.87
• 5.5.88
• 5.5.89

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Entryinfo

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