Severity: HighAction: ReviewExploitation: Exploited

Ninja Forms plugin flaw exploited to hack WordPress sites

Hackers are exploiting stored cross-site scripting (XSS) vulnerabilities in two unrelated WordPress plugins, Ninja Forms and WPC Product Bundles for WooCommerce, to install backdoors and create rogue admin accounts.

Excerpt from the primary source: BleepingComputer

Who is affected

Small businesses · Developers

Affected technology: WordPress

Why it matters

Source reporting says attackers are already exploiting this, so exposed WordPress systems are at immediate risk.

Automated: stated only from CISA listings and the exploitation evidence in the sources below.

What you should do · Review

Review whether your organization uses WordPress and assess exposure using the linked advisories.

Automated guidance based on this story's classification. Check the linked advisories for specifics.

Sources

We link to original and authoritative sources. Headlines and excerpts belong to their publishers.

Original reporting

Ninja Forms plugin flaw exploited to hack WordPress sites BleepingComputer · bleepingcomputer.com · Oct 6, 2026 · Primary source
Severity: Informational

Scans for Wordfence Protected Websites, (Tue, Sep 29th)

Starting yesterday, our sensors picked up a small number of scans for "wordfence-waf.php". This particular script is used by Wordfence, a solution to protect WordPress sites. During the Wordfence install, the wordpress-waf.php file will be created in the site's root directory [1].

Severity: HighAction: PatchExploitation: ExploitedCISA KEV

CISA Adds One Known Exploited Vulnerability to Catalog

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 frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise. Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based…

Why it matters

CISA lists this as exploited in the wild. Unpatched WordPress and Core systems are exposed to active attacks now.

Patch

Apply the vendor's security update for WordPress and Core.

Severity: HighAction: PatchExploitation: ExploitedCISA KEV

WordPress Core Remote File Inclusion Vulnerability (CVE-2026-87902) is being actively exploited, CISA warns

CISA added CVE-2026-87902 (WordPress Core) to its Known Exploited Vulnerabilities catalog on September 25, 2026, which means there is reliable evidence of exploitation in the wild. WordPress Core contains a remote file inclusion vulnerability which could allow an unauthenticated attacker to make page-template resolution include a chosen readable local `.php` file outside the active theme directories, leading to…

Why it matters

CISA lists this as exploited in the wild. Unpatched WordPress and Core systems are exposed to active attacks now.

Patch

Apply the vendor's security update for WordPress and Core.

Severity: HighAction: Be awareExploitation: Exploited

Hackers exploit 32 zero-days on first day of Pwn2Own Ireland

On the first day of the Pwn2Own Ireland 2026 competition, security researchers hacked the Samsung Galaxy S26 twice and earned $388,500 after exploiting 32 zero-days.

Why it matters

Source reporting says attackers are already exploiting this, so exposed affected systems are at immediate risk.