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high advisory

PraisonAI: IMAP Command Injection via Unsanitized Email Search Parameters

A command injection vulnerability (CVE-NONE) exists in PraisonAI's `praisonaiagents` package (versions <= 1.6.48) where unsanitized LLM-controlled parameters are directly interpolated into IMAP SEARCH commands, allowing attackers to craft malicious prompts to inject arbitrary IMAP commands, leading to unauthorized email exfiltration, deletion, or denial-of-service when email tools are configured.

praisonaiagents command-injection llm-agent imap email data-exfiltration
3r 4t
medium advisory

M365 Exchange Inbox Forwarding Rule Created

This rule detects the creation of new inbox forwarding rules in Microsoft 365, which can be abused by attackers to intercept and exfiltrate email data to external addresses.

Microsoft 365 cloud saas email microsoft_365 configuration_audit email_collection
2r 1t
medium advisory

M365 Exchange Inbox Rule with Obfuscated Name

This rule detects when a Microsoft Exchange inbox rule is created or modified with a name composed only of special characters, which adversaries may use to evade detection and hide malicious forwarding or deletion rules.

Microsoft 365 +1 cloud saas email exchange defense evasion persistence
2r 2t
medium advisory

Monitor Email for Brand Abuse via Domain Permutations

This analytic identifies emails claiming to originate from domains similar to those being monitored for abuse by cross-referencing sender addresses with a lookup table of domain permutations, indicating potential phishing or brand impersonation.

Splunk Enterprise +2 brand-abuse email phishing impersonation
2r 1t
high advisory

O365 BEC Email Hiding Rule Creation

This analytic detects the creation of suspicious mailbox rules in Office 365, a common technique used in Business Email Compromise (BEC) to hide emails by identifying rules with short or nonsensical names, marking emails as read, or moving them to specific folders.

Office 365 +4 bec o365 email mailboxrule splunk threat-hunting
2r 1t
medium advisory

Keycloak Vulnerability Allows Arbitrary Email Sending

An anonymous, remote attacker can exploit a vulnerability in Keycloak to send arbitrary emails, potentially leading to phishing or social engineering attacks.

Keycloak email vulnerability spoofing
2r 1t
medium advisory

Phone Number Reuse in Scam Email Campaigns

Talos has begun tracking phone numbers in emails as indicators of compromise, revealing insights into their reuse in scam campaigns where attackers use API-driven VoIP services for cost-effective operations, rotating phone number blocks to evade security filters, and maximizing reach by recycling numbers across diverse lures.

Geek Squad email phishing voip scam
2r 1t 2i
medium threat

Multiple Vulnerabilities in Mutt Email Client Lead to Potential DoS

A remote, anonymous attacker can exploit multiple vulnerabilities in mutt to bypass security measures and cause a denial-of-service condition.

exploited mutt denial-of-service email
2r 3t
high threat

Q1 2026 Email Threat Landscape: Rise in Phishing Techniques and Tycoon2FA Disruption

In Q1 2026, email threats increased, including credential phishing, QR code phishing, and CAPTCHA-gated campaigns, with Microsoft's disruption of the Tycoon2FA phishing platform leading to a 15% volume decrease and shifts in threat actor tactics; BEC activity remained prevalent at 10.7 million attacks.

Microsoft Defender Storm-1747 email phishing credential-theft Tycoon2FA BEC
2r 1t
high advisory

Apple Account Notification Phishing Campaign

A phishing campaign is abusing legitimate Apple account change notifications to deliver fake iPhone purchase scams, tricking users into calling malicious support numbers.

apple phishing callback phishing email
2r 1t 5i
medium advisory

Outlook Security Settings Registry Modification

Attackers modify Outlook security settings via registry changes to enable malicious mail rules and bypass security controls, potentially leading to persistence and data compromise.

Microsoft Outlook persistence registry_modification outlook email
2r 1t