CVE-2026-27787Disclosure(icz / matcha_sns)

LOWCVSS 5.1 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch icz matcha_sns systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Cross-site scripting vulnerability exists in MATCHA SNS 1.3.9 and earlier. If this vulnerability is exploited, an arbitrary script may be executed on the web browser of the user who accessed the website using the product.

0.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-79

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • matcha_sns

Threat summary

  • Patch or workaround signal is available
  • 3 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 3 signals
  • Disclosure: 3 classified signals
  • Peaked 1d ago at 2 mentions (2026-04-08); latest day: 1
  • 3 total mentions across 2 days

Affected systems

Vendors
Products
matcha_sns

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-04-08: 2Mentions · 2026-04-13: 1Patch / Workaround · 2026-04-08: 1Technical Details · 2026-04-08: 2Technical Details · 2026-04-13: 104-0804-13
Signal classification1 categories
Disclosure
3100.0%
Referenced assets4 URLs
Classification over time
DateTotalLabels
2026-04-082
Disclosure2
2026-04-131
Disclosure1
Full discourse3 posts
  • CVE@CVEnew
    Disclosure

    CVE-2026-27787 Cross-site scripting vulnerability exists in MATCHA SNS 1.3.9 and earlier. If this vulnerability is exploited, an arbitrary script may be executed on the web browser … https://www.cve.org/CVERecord?id=CVE-2026-27787

    Post summary

    The excerpt simply discloses a cross‑site scripting flaw in MATCHA SNS 1.3.9 and earlier, highlighting potential arbitrary script execution in affected browsers.

    00000150
    57.1K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-27787 Cross-Site Scripting Vulnerability in MATCHA SNS 1.3.9 and Earlier https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-27787

    Post summary

    The brief note announces a cross‑site scripting vulnerability (CVE‑2026‑27787) in MATCHA SNS 1.3.9 and earlier, providing minimal technical detail but no evidence of exploitation or remediation.

    0000050
    4.0K followersView on X
  • Syed Aquib@syedaquib77
    Disclosure

    ⚠️ **Vulnerability Alert:** Multiple vulnerabilities in 抹茶シリーズ (SQL Injection, XSS, Insecure File Upload) 📅 **Timeline:** Disclosure: Not Available, Patch: Not Available 🆔 **CVE-2026-24913** | 📊 CVSS: 8.8 (High 🟠) | 📈 EPSS: Not Available% 🆔 **CVE-2026-27787** | 📊 CVSS: 8.8 (High 🟠) | 📈 EPSS: Not Available% 🆔 **CVE-2026-33273** | 📊 CVSS: 8.8 (High 🟠) | 📈 EPSS: Not Available% 🛠️ **Exploit Maturity:** Not Available 📂 **Affected Versions:** 抹茶請求書 2.6.6 およびそれ以前, 抹茶SNS 1.3.9 およびそれ以前 🫨 **Attack Vectors:** - SQL Injection (authenticated) - Stored Cross-Site Scripting (XSS) - Insecure file upload allowing arbitrary file creation leading to potential code execution 📝 **Summary:** Multiple high-severity vulnerabilities in the 抹茶シリーズ allow authenticated SQL injection, stored XSS, and insecure file uploads that can lead to database compromise, session theft/phishing, and server-side arbitrary file creation with potential RCE. No vendor patches are available yet, so immediate mitigation, monitoring, and preparation for patch deployment are required. 📈 **Impact Scope:** Potential unauthorized database access/modification, script execution in site visitors' browsers (session/cookie theft, phishing), and arbitrary file creation on server possibly leading to remote code execution and full server compromise. 🛡️ **Recommended Actions:** - Apply vendor-supplied fixes/updates as soon as available - Harden authentication and enforce least privilege for admin accounts - Validate/sanitize inputs and use parameterized queries; encode outputs to mitigate XSS - Enforce strict file upload validation, scan content, and store uploads outside the web root - Deploy or tune WAF rules and increase log monitoring for IOCs - Rotate credentials and ensure recent backups & an incident response plan 🪢 **Related Resources:** - https://jvn.jp/jp/JVN33581068/ - https://jvndb.jvn.jp/jvndb/JVNDB-2026-000052 🏷 **Tags:** #Cybersecurity #WebApp #SQLi_XSS

    Post summary

    The post announces high‑severity CVEs affecting the 抹茶シリーズ, detailing the attack vectors, affected versions, and recommended mitigation actions, but does not provide proof of exploitation or a functioning exploit.

    0000041
    276 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appiczmatcha_sns---

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