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Security News
Security News — 26 September 2026
A daily, automatically-compiled digest of the cyber security stories that broke in the last 24 hours, drawn from 5 trusted feeds. Each entry is a short excerpt — follow the link to read the full article at its original publisher. Compiled 26 September 2026 · 17 items.
Urgent Vulnerabilities 6
Actively exploited, critical, or high-severity flaws — patch or mitigate first.
BleepingComputer26 Sep
KEV · exploitedRansomware
- Exploited
- Yes — CISA KEV
- Product
- Oracle PeopleSoft Enterprise PeopleTools
- Impact
- Missing authentication
- Action
- Patch per vendor / CISA KEV
The ShinyHunters extortion gang is using a URL-encoding trick to bypass web application firewall rules that mitigate the Oracle PeopleSoft CVE-2026-35273 flaw, allowing the threat actors to resume widespread exploitation of a flaw on vulne…
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The Hacker News26 Sep
KEV · exploitedRansomware
- Exploited
- Yes — CISA KEV
- Product
- Oracle PeopleSoft Enterprise PeopleTools
- Impact
- Missing authentication
- Action
- Patch per vendor / CISA KEV
Google is warning of renewed mass exploitation of a known security vulnerability in Oracle PeopleSoft as part of a campaign targeting multiple sectors globally. The ShinyHunters-linked activity involves the weaponization of CVE-2026-35273…
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CVEDatabase - Critical CVEs26 Sep
CriticalCVSS 9.9
CVSS 9.9 CRITICAL · Vendor: adobe Adobe Campaign Classic (ACC) is affected by an Improper Control of Generation of Code ('Code Injection') vulnerability that could result in arbitrary code execution in the context of the current user. A lo…
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CVEDatabase - Critical CVEs26 Sep
CriticalCVSS 9.4
- Product
- Froxlor
- Action
- Patch when a fix is available; monitor exposure
CVSS 9.4 CRITICAL Froxlor is a server administration panel. In versions 2.3.10 and earlier, the customer data-export (DataDump) cron fails to validate intermediate path components of the export destination: Froxlor\FileDir::makeCorrectDir(…
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CVEDatabase - Critical CVEs26 Sep
HighCVSS 8.5
CVSS 8.5 HIGH froxlor is a server administration panel. In versions 2.3.10 and earlier, Validate::validateUrl rejects carriage return and line feed characters only in the path, query and fragment components returned by parse_url, and never…
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CVEDatabase - Critical CVEs26 Sep
HighCVSS 8.5
CVSS 8.5 HIGH Froxlor through 2.3.10 is vulnerable to arbitrary file deletion via symlink following in the FTP data deletion cron task. Cron task 8 (deleteFtpData), queued when an FTP account is deleted, calls FileDir::makeCorrectDir() wit…
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Other CVEs 4
Lower-severity or unconfirmed-exploitation vulnerabilities.
CVEDatabase - Recent CVEs26 Sep
MediumCVSS 4.9
- Impact
- Denial of service
- Action
- Patch when a fix is available; monitor exposure
CVSS 4.9 MEDIUM Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead denial of service via Excessive Allocation (CAPEC-130)
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CVEDatabase - Recent CVEs26 Sep
MediumCVSS 6.5
- Impact
- Denial of service
- Action
- Patch when a fix is available; monitor exposure
CVSS 6.5 MEDIUM Uncontrolled Resource Consumption (CWE-400) in Kibana can lead denial of service via Excessive Allocation (CAPEC-130)
Read at source →
CVEDatabase - Recent CVEs26 Sep
MediumCVSS 6.5
- Impact
- Denial of service
- Action
- Patch when a fix is available; monitor exposure
CVSS 6.5 MEDIUM Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead denial of service via Excessive Allocation (CAPEC-130)
Read at source →
CVEDatabase - Recent CVEs26 Sep
MediumCVSS 6.5
- Impact
- Denial of service
- Action
- Patch when a fix is available; monitor exposure
CVSS 6.5 MEDIUM Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead denial of service via Excessive Allocation (CAPEC-130)
Read at source →
Threat Activity 4
Malware, campaigns and adversary tradecraft.
The Hacker News26 Sep
Details have emerged about a high-severity security flaw in the Elementor Website Builder WordPress plugin that could be exploited by an unauthenticated attacker to create rogue administrator accounts and take control of a site. The cross-…
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BleepingComputer26 Sep
Microsoft has paused the rollout of the KB5002907 Microsoft 365 update after users report that it deactivated, or in some cases completely removed, perpetual Office 2016 and Office 2019 installations. [...]
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BleepingComputer26 Sep
Anthropic's Claude Opus 5.5 appears to be changing how it writes, with new analysis showing fewer obvious AI writing patterns, shorter sentences, and simpler wording compared with Opus 5. [...]
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The Hacker News26 Sep
The way we talk about AI agents is shifting, and the way we implement them requires an even more fundamental shift. While earlier discourse focused on how quickly organizations could stand up agents and how much productivity they could pro…
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Breaches & Incidents 2
Ransomware, data breaches and supply-chain events.
The Hacker News26 Sep
The Psychedelic Stealer malware distributed via compromised Ukrainian websites using ClickFix-style Cloudflare verification checks is part of a wider malware-as-a-service (MaaS) platform called Lunex. The new findings come from Ontinue, wh…
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BleepingComputer26 Sep
Two third-party GitHub Actions previously compromised in a Mini Shai-Hulud campaign were re-enabled by their maintainer and remained accessible for more than a week despite still pointing to malicious code. [...]
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Policy & Commentary 1
Industry, executive and AI-security perspective.
Daniel Miessler26 Sep
A figure speaks a long waveform that shatters against a purple machine while a foot pedal sends a clean signal into its slot/images/typeless-foot-pedal.webp/images/typeless-foot-pedal.webp I'm Kai, Daniel's AI assistant, and I wrote this p…
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