VulnerabilityPublished 11 Mar 2026

CVE-2026-1753: Gutena Forms (WordPress plugin) · Insecure Direct Object Reference

Affects Gutena Forms (WordPress plugin)Source CVE Database V5

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Not known to be exploited · CVSS 6.8 Medium : upgrade to 1.6.1 when convenient.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score

6.8Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 1.6.1

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

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

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: High: The attacker is authorized with (i.e., requires) privileges that provide significant (e.g., administrative) control over the vulnerable component that could affect component-wide settings and files.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Changed: An exploited vulnerability can affect resources beyond the security scope managed by the security authority of the vulnerable component. In this case, the vulnerable component and the impacted component are different and managed by different security authorities.
Confidentiality: None: There is no loss of confidentiality within the impacted component.
Integrity: High: There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 11 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Gutena Forms (WordPress plugin) to 1.6.1.

Affected software

Product	Affected	Fixed in
Gutena Forms	Affected <1.6.1	Fixed in 1.6.1

AI-suggested

To mitigate CVE-2026-1753, organizations should promptly update the Gutena Forms plugin to version 1.6.1 or later once it becomes available, as this version is expected to include proper validation of options to be updated. If you cannot patch yet, administrators should restrict contributor and higher roles from accessing or modifying plugin settings where possible. Implementing the principle of least privilege by limiting user roles and permissions can reduce the attack surface. Additionally, monitoring changes to critical site options such as users_can_register can help detect unauthorized modifications early. Employing Web Application Firewalls (WAFs) with rules to detect unusual POST requests targeting plugin options may provide temporary protection. Regular audits of user roles and plugin configurations, combined with security plugins that log administrative changes, will enhance detection and response capabilities. Finally, educating site administrators about the risks of granting contributor-level access and encouraging timely plugin updates are essential best practices.

Description

The Gutena Forms WordPress plugin before 1.6.1 does not validate option to be updated, which could allow contributors and above role to update arbitrary boolean and array options (such as users_can_register).

Impact

The primary impact of CVE-2026-1753 is the unauthorized modification of critical site options by users with contributor-level permissions or higher. This can lead to several security risks including unauthorized user registrations if the users_can_register option is enabled maliciously, potentially allowing attackers to create accounts that could be used for further exploitation or spam. Additionally, arbitrary modification of boolean and array options could disrupt site functionality or weaken security configurations. This vulnerability could facilitate privilege escalation, enabling attackers to gain higher access levels indirectly. For organizations, this could result in compromised site integrity, unauthorized access, and potential data exposure or service disruption. Since WordPress powers a significant portion of websites globally, and Gutena Forms is a popular plugin, the scope of affected systems is substantial. The ease of exploitation by contributors (a relatively low privilege role) without requiring user interaction increases the risk. However, the lack of known exploits in the wild currently limits immediate widespread impact. Nonetheless, organizations using vulnerable versions should consider this a serious threat to site security and user management.

CWE-639Authorization Bypass Through User-Controlled Key (opens in a new tab)
Base weaknessLikelihood of exploit: HighCWE Top 25 (2025): #24OWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.
Architecture and Design
For each and every data access, ensure that the user has sufficient privilege to access the record that is being requested.
Architecture and Design · Implementation
Make sure that the key that is used in the lookup of a specific user's record is not controllable externally by the user or that any tampering can be detected.
Architecture and Design
Use encryption in order to make it more difficult to guess other legitimate values of the key or associate a digital signature with the key so that the server can verify that there has been no tampering.
OWASP Cheat Sheets
Access Control (opens in a new tab)
Authorization Testing Automation (opens in a new tab)
Cross-Site Request Forgery Prevention (opens in a new tab)
Insecure Direct Object Reference Prevention (opens in a new tab)
Authorization (opens in a new tab)
OWASP ASVS 4.0.3
V4.1.2 (opens in a new tab)
V4.2.1 (opens in a new tab)
V8.3.8 (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

wpscan.com/vulnerability/c42dbab9-b729-4748-88e5-0bd2f6d66e3d/ (opens in a new tab)

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 11 Mar 2026, 06:30 UTC

WeaknessesCWE-639

Technical details

References

Community reviews

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