CVE-2025-26312

CAPTCHA bypass via omitted request parameter

Published Mar 14, 2025 · Updated Mar 18, 2025

CAPTCHA bypass in SendQuick Entera before 11HF5 allows remote attackers to submit protected web requests without solving CAPTCHA. Entera's request validation accepts omission of the Captcha parameter instead of rejecting the request for missing CAPTCHA proof. Adjacent network access is required, and public sources identify neither the affected endpoint nor bypass of any separate credential check.

CVSS severity5.3
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CAPTCHA bypass in SendQuick Entera before 11HF5 allows remote attackers to submit protected web requests without solving CAPTCHA. Entera's request validation accepts omission of the Captcha parameter instead of rejecting the request for missing CAPTCHA proof. Adjacent network access is required, and public sources identify neither the affected endpoint nor bypass of any separate credential check.

The record

CVE
CVE-2025-26312
Published
Mar 14, 2025
Updated
Mar 18, 2025
Vendor
SendQuick Pte Ltd
Product
SendQuick Entera
Classifications
CWE-472
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 14, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 18, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <SQVM-20170813-11HF5

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

SendQuick Pte Ltd · SendQuick Enteraversion=0 <SQVM-20170813-11HF5

Published CVSS scores

5.3MITRECVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-472External Control of Assumed-Immutable Web Parameter

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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