CVE-2026-81420Suited to automated attack · CISA

Tcard WP <= 1.8.0 - Unauthenticated SQLi via group_id Parameter

CVSS score

8.6

EPSS probability

%0.3

Risk score

0.0

Published

2 d ago

Overview Public Exploits (0)Newsroom Vulnerability Timeline

Patch status has not yet been verified

Resmî kaynaklarda yeterli kanıt bulunamadı. Bu sonuç “yama yok” anlamına gelmez.

Impact on My Inventory

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Vulnerability description

CVE AI research

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DayBreach AI Explanation

Verified against sources

Tcard WP Plugin Unauthenticated SQL Injection

Sources read

Source agreement

Tam uyum

Evidence confidence

%63

Short explanation

The Tcard WP WordPress plugin through 1.8.0 fails to properly sanitize and escape the group_id parameter within an unauthenticated AJAX action, allowing unauthenticated users to perform SQL injection attacks.

Why does it matter?

This vulnerability matters because it allows unauthenticated remote attackers to execute SQL injection, potentially exposing sensitive data.

What should be done?

Monitor official vendor advisories and updates
Apply vendor recommendations as appropriate

Chain of evidence and sources2 verified claims

Tcard WP 1.8.0 ve önceki sürümleri, kimlik doğrulamasız AJAX eylemlerinde SQL enjeksiyonu zafiyeti barındırmaktadır.

S0 · daybreach-canonical S1 · cvelist S2 · nvd

Zafiyet, group_id parametresinin SQL sorgusunda kullanılmadan önce temizlenmemesinden kaynaklanmaktadır.

S0 · daybreach-canonical S1 · cvelist S2 · nvd

Show the technical text from the sources

The Tcard WP WordPress plugin through 1.8.0 does not sanitise and escape a parameter before using it in a SQL statement in one of its unauthenticated AJAX actions, allowing unauthenticated users to perform SQL injection attacks.

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

CWE: CWE-89

Explanation produced with the local gemini-flash-lite-latest model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-81420 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

ID	VENDOR	PRODUCT	ACTION
1	Unknown	Tcard WP	View

Total affected vendors: 1|Products: 1

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCORE	VERSION	SEVERITY	VECTOR	SOURCE
8.6	CVSS V31	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N	NVD
8.6	CVSS V3_1	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N	CVE ADP

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.

Restrict access to internet-facing services and apply network segmentation.

Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.

Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-81420 is associated with the following CWEs:

CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-81420 weaknesses.

CAPEC-66: SQL Injection CAPEC-126: Path Traversal CAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden

PermissionsGerekmiyor

UserGerekmiyor

Official Sources and Advisories

https://wpscan.com/vulnerability/cedd2a79-a718-4398-8df4-786b3b585090/vendor-advisory

CVSS Vector Radar Chart

8.6 / 10

Vulnerability Scoring Details

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

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone required

User InteractionNone required

Confidentiality (Gizlilik)Low

Integrity (Bütünlük)None

Availability (Erişilebilirlik)None

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Follow the vendor

Unknown

Weakness Type (CWE & CAPEC)

CWE-89

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Get this vulnerability through the API

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