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Security News — 25 September 2026

A daily, automatically-compiled digest of the cyber security stories that broke in the last 24 hours, drawn from 11 trusted feeds. Each entry is a short excerpt — follow the link to read the full article at its original publisher. Compiled 25 September 2026 · 24 items.

Top 5 to watch today

  1. CISA warns of Sharepoint, WSO2, Adobe Commerce flaws exploited in attacks exploited BleepingComputer
  2. CISA Adds One Known Exploited Vulnerability to Catalog exploited CISA Current Activity
  3. CISA Adds Two Known Exploited Vulnerabilities to Catalog exploited CISA Current Activity
  4. Kiteworks urges 6-hour server shutdown over potential zero-day attacks exploited BleepingComputer
  5. ShinyHunters hacked Clop leak site using Grav CMS path traversal flaw BleepingComputer

Urgent Vulnerabilities 5

Actively exploited, critical, or high-severity flaws — patch or mitigate first.

BleepingComputer25 Sep

CISA warns of Sharepoint, WSO2, Adobe Commerce flaws exploited in attacks

KEV · exploited
Exploited
Yes — CISA KEV
Product
WSO2 Multiple Products
Impact
Remote code execution
Audience
Windows admins
Action
Patch per vendor / CISA KEV

The Cybersecurity and Infrastructure Security Agency (CISA) warns that hackers are exploiting a critical authentication bypass vulnerability (CVE-2026-5430) affecting multiple products from enterprise software provider WSO2. [...]

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CISA Current Activity25 Sep

CISA Adds One Known Exploited Vulnerability to Catalog

KEV · exploited
Exploited
Yes — CISA KEV
Product
WordPress Core
Impact
Remote code execution
Audience
WordPress admins
Action
Patch per vendor / CISA KEV

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2026-87902 WordPress Core Remote File Inclusion Vulnerability This type of vulnerability is a frequen…

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CISA Current Activity25 Sep

CISA Adds Two Known Exploited Vulnerabilities to Catalog

KEV · exploited
Exploited
Yes — CISA KEV
Product
Microsoft SharePoint
Impact
Code injection
Audience
Windows admins
Action
Patch per vendor / CISA KEV

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2026-65660 Microsoft SharePoint Code Injection Vulnerability CVE-2026-67279 Mikrotik RouterOS Impro…

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CVEDatabase - Critical CVEs25 Sep

CVE-2026-97064 — CRITICAL (CVSS 9.3)

CriticalCVSS 9.3

CVSS 9.3 CRITICAL X-SpringBoot through 6.0 ships with a hardcoded static master login verification code 172839 enabled by default in the database seed. Unauthenticated attackers can authenticate as any user by submitting the public master…

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CVEDatabase - Critical CVEs25 Sep

CVE-2026-97063 — CRITICAL (CVSS 9.3)

CriticalCVSS 9.3

CVSS 9.3 CRITICAL X-SpringBoot through 6.0 returns login verification codes in HTTP responses from unauthenticated endpoints GET /sys/mobile/code and GET /sys/email/code without sending them to account owners. Attackers can request codes u…

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Threat Activity 8

Malware, campaigns and adversary tradecraft.

Palo Alto Unit 4225 Sep

3 Consulting Myths Debunked by Unit 42 Experts

Unit 42 security experts address critical cybersecurity misconceptions, offering practical insights to help your organization reinforce its enterprise defenses. The post 3 Consulting Myths Debunked by Unit 42 Experts appeared first on Unit…

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Breaches & Incidents 5

Ransomware, data breaches and supply-chain events.

Research & Detection 3

Detection engineering, tooling and defensive analysis.

Policy & Commentary 3

Industry, executive and AI-security perspective.

Schneier on Security25 Sep

On Anthropic’s AI Misuse Report

Earlier this month, Anthropic published a long report detailing all of the Claude misuses it detected. Daniel Meissler usefully summarized the report into 117 findings. A few of the highlights: AI agents increasingly handled reconnaissance…

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