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SimplyRETS IDX CVE-2026-73354

| EUVDEUVD-2026-62382 HIGH
Cross-site Scripting (XSS) (CWE-79)
2026-08-19 Patchstack GHSA-vvc4-fm82-4xfr
7.1
CVSS 3.1 · Vendor: Patchstack
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Severity by source

Vendor (Patchstack) PRIMARY
7.1 HIGH
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
vuln.today AI
6.1 MEDIUM

Network-delivered XSS with no privileges and required user interaction, scope changed to victim browser; availability impact reassessed to None as standard XSS does not impair service availability.

3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
Low

Lifecycle Timeline

2
Analysis Generated
Aug 19, 2026 - 13:26 vuln.today
CVE Published
Aug 19, 2026 - 12:38 cve.org
HIGH 7.1

DescriptionCVE.org

Unauthenticated Cross Site Scripting (XSS) in SimplyRETS Real Estate IDX <= 3.2.8 versions.

AnalysisAI

Unauthenticated cross-site scripting in the SimplyRETS Real Estate IDX WordPress plugin (versions 3.2.8 and earlier) allows remote attackers to inject and execute arbitrary JavaScript in a victim's browser without any prior authentication. Exploitation is gated on user interaction - the victim must visit a crafted URL - which limits automated mass exploitation but still enables session hijacking, credential theft, or malicious redirects targeting site visitors or administrators. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Identify WordPress site with SimplyRETS IDX <= 3.2.8
Delivery
Craft URL embedding XSS payload in vulnerable plugin parameter
Exploit
Deliver malicious link to target user via email or social engineering
Execution
Victim clicks link and browser loads plugin-rendered page
Persist
Injected script executes in victim's browser context
Impact
Exfiltrate session cookies or impersonate victim

Vulnerability AssessmentAI

Exploitation The SimplyRETS Real Estate IDX plugin version 3.2.8 or earlier must be installed and active on a WordPress installation. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 base score of 7.1 (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L) reflects a network-accessible, low-complexity attack requiring no privileges but depending on user interaction, with a changed scope affecting the victim's browser. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker identifies a WordPress site running SimplyRETS Real Estate IDX version 3.2.8 or earlier, then crafts a URL embedding a JavaScript payload within a plugin-processed parameter and distributes it to target users - real estate agents, site visitors, or administrators - via email, property listing links, or social media. When the victim navigates to the URL, the plugin renders the unsanitized input into the page HTML and the injected script executes in the victim's browser, enabling the attacker to exfiltrate session cookies, capture form inputs, or silently redirect the victim to a phishing site. …
Remediation Update the SimplyRETS Real Estate IDX plugin to a version released after 3.2.8; verify the confirmed patched release number directly via the Patchstack advisory at https://patchstack.com/database/wordpress/plugin/simply-rets/vulnerability/wordpress-simplyrets-real-estate-idx-plugin-3-2-8-cross-site-scripting-xss-vulnerability or the WordPress.org plugin repository, as the exact fixed version is not explicitly stated in current available intelligence. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Conduct an audit to identify all WordPress installations using SimplyRETS Real Estate IDX plugin, document current versions in use, and assess the number of visitors and administrators exposed. …

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CVE-2026-73354 vulnerability details – vuln.today

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