Is CVE-2025-56421 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2025-56421 being exploited in the wild.

How severe is CVE-2025-56421?

High severity, with a CVSS score of 7.5, published 10 March 2026.

Which products and versions are affected?

LimeSurvey before 6.15.4+250710; limesurvey/limesurvey (Packagist) ECOSYSTEM:introduced=0,fixed=6.15.4.

Is there a fix for CVE-2025-56421?

Yes. limesurvey/limesurvey (Packagist): upgrade to 6.15.4 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2025-56421 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2025-56421?

Check whether you run LimeSurvey or limesurvey/limesurvey (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2025-56421: LimeSurvey SQL injection allows remote data extraction

CVE-2025-56421 · Severity: high · CVSS 7.5 · Published 2026-03-10

LimeSurvey, a popular open-source survey tool, is vulnerable to a security flaw that allows unauthorized individuals to access its underlying database. An attacker could exploit this to steal sensitive information, including user credentials, private survey responses, and administrative data. Organizations using this software should update immediately to prevent data theft.

Technologies: LimeSurvey, limesurvey/limesurvey (Packagist). Vendors: LimeSurvey, Packagist.

Quick answers

Is CVE-2025-56421 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2025-56421 being exploited in the wild.
How severe is CVE-2025-56421?: High severity, with a CVSS score of 7.5, published 10 March 2026.
Which products and versions are affected?: LimeSurvey before 6.15.4+250710; limesurvey/limesurvey (Packagist) ECOSYSTEM:introduced=0,fixed=6.15.4.
Is there a fix for CVE-2025-56421?: Yes. limesurvey/limesurvey (Packagist): upgrade to 6.15.4 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2025-56421 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2025-56421?: Check whether you run LimeSurvey or limesurvey/limesurvey (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

limesurvey/limesurvey (Packagist): upgrade to 6.15.4 or later
```
composer require limesurvey/limesurvey:^6.15.4
```

Technical details

A SQL injection vulnerability exists in LimeSurvey due to improper input validation of user-supplied data before it is used in database queries. The flaw allows a remote, unauthenticated attacker to manipulate SQL query logic by sending specially crafted requests to the application. Successful exploitation enables the attacker to execute arbitrary SQL queries, potentially leading to the unauthorized retrieval of sensitive data such as user credentials and survey results. The issue is resolved in version 6.15.4+250710.

Affected products

LimeSurvey LimeSurvey before 6.15.4+250710

Identifiers

CVE-2025-56421
GHSA-rccq-2fxq-7x3h

Timeline

2026-03-10: advisory: NVD publication date
2025-07-10: patched: Based on version naming convention 250710

References

https://github.com/hongancalif/security-advisories/blob/main/CVE-2025-56421.md

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