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CVE-2025-56421

SQL Injection vulnerability in LimeSurvey before v.6.15.4+250710 allows a remote attacker to obtain sensitive information from the database.

No known exploitation. EPSS puts it in the 41st percentile. Fixed in 6.15.4.

CVSS 3.17.5HighEPSS percentile41st0.5% chance in 30 daysCISA KEVNot listedNo confirmed exploitation
No public exploit knownFix6.15.4Upgrade to this build

Published Updated Sources: CVE.org, NVD, GitHub

NVD CVE.org

What to do

Find your product and version, then upgrade to the build on the right.

  • Packagist limesurvey/limesurveyAffected: < 6.15.4Upgrade to: 6.15.4Stated by: GitHub advisory
  • LimesurveyAffected: ≤ 6.15.3Upgrade to: after 6.15.3Stated by: NVD

Versions as the sources state them. Full version matrix after sign-in

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What it is

From the CVE record

LimeSurvey is vulnerable to SQL injection

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS41st
CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

No public exploit or proof of concept found in the sources we track.

EPSS

0.5% chance of exploitation activity in the next 30 days, which ranks it in the 41st percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

5 events over 117 days, from the signal feeds we watch.

  1. Patch availablerecord updated
  2. Publishedweakness classified, att&ck mapped

Affected products

And 1 more affected product. See all after sign-in

Technical detail

CVSS 3.1 vector

Open in the CVSS calculator

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

Scored 7.5 by NVD.

How it is reached

  • Attack Vector NetworkExploitable remotely over the network without any special conditions
  • Attack Complexity LowNo special conditions — the attack can be reliably reproduced
  • Privileges Required NoneNo authentication required — anyone can exploit this
  • User Interaction NoneNo user interaction needed — fully automated exploitation

Scope

  • Scope UnchangedImpact is limited to the vulnerable component itself

Impact if exploited

  • Confidentiality HighTotal information disclosure — all data in the component is compromised
  • Integrity NoneNo integrity impact
  • Availability NoneNo availability impact

Weaknesses

ATT&CK techniques

Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.

Sources

References in the record

And 3 more references. See all after sign-in

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We'll flag the next CVE, public exploit or patch for Limesurvey/limesurvey, not every advisory.