The Webpushr Push Notifications plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'webpushr_notification_title' and 'webpushr_notification_body' parameters in versions up to, and including, 4.39.0. This is due to insufficient input sanitization in the save_send_notification_flag() function and missing output escaping in the wpp_notification_box() function, which concatenates raw post meta values directly into HTML attribute and textarea contexts. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
CVE-2026-9729
Score 6.4 from GitHub Security Advisory published 2026-07-23. a secondary CVSS source baseline 6.4; sources differ by 0.0.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.4
- EG Score
- 6.4(medium)
- EG Risk
- 29(Track)EG Risk 29/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity64% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 26%
- KEV
- Not listed
Published
July 23, 2026
Last Modified
July 23, 2026
References (5)
- security@wordfencehttps://plugins.trac.wordpress.org/browser/webpushr-web-push-notifications/trunk/include/webpushr_functions.php#L513
- security@wordfencehttps://plugins.trac.wordpress.org/browser/webpushr-web-push-notifications/trunk/include/webpushr_functions.php#L517
- security@wordfencehttps://plugins.trac.wordpress.org/browser/webpushr-web-push-notifications/trunk/include/webpushr_functions.php#L699
- security@wordfencehttps://plugins.trac.wordpress.org/browser/webpushr-web-push-notifications/trunk/include/webpushr_functions.php#L702
- security@wordfencehttps://www.wordfence.com/threat-intel/vulnerabilities/id/39286096-2efa-450b-b491-b3d40de5a4ae?source=cve
Vendor Advisories for CVE-2026-9729(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 20× in last 7d / 87× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 108 total refreshes for this CVE.
- 2026-08-30 01:22 UTCEPSS rescore
- 2026-08-30 00:47 UTCEG score recompute
- 2026-08-30 00:47 UTCGHSA enrichment
- 2026-08-28 21:42 UTCEPSS rescore
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- 2026-08-23 12:15 UTCEG score recompute
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- 2026-08-23 00:19 UTCEPSS rescore
- 2026-08-22 14:24 UTCEG score recompute
- 2026-08-22 14:24 UTCGHSA enrichment
- 2026-08-21 23:49 UTCEPSS rescore
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- 2026-08-21 16:34 UTCGHSA enrichment
- 2026-08-20 22:56 UTCEPSS rescore
- 2026-08-20 18:31 UTCGHSA enrichment
- 2026-08-19 20:41 UTCEG score recompute
- 2026-08-19 20:41 UTCGHSA enrichment
- 2026-08-19 17:04 UTCEPSS rescore
- 2026-08-18 19:46 UTCEG score recompute
- 2026-08-18 19:46 UTCGHSA enrichment
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- 2026-08-17 21:57 UTCGHSA enrichment
- 2026-08-17 13:47 UTCEPSS rescore
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- 2026-08-17 00:07 UTCGHSA enrichment
- 2026-08-16 14:56 UTCEPSS rescore
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- 2026-08-16 02:17 UTCGHSA enrichment
- 2026-08-16 02:15 UTCEPSS rescore
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- 2026-08-15 01:31 UTCEPSS rescore
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- 2026-08-14 06:38 UTCGHSA enrichment
- 2026-08-13 22:00 UTCEPSS rescore
- 2026-08-13 08:49 UTCEG score recompute
- 2026-08-13 08:49 UTCGHSA enrichment
- 2026-08-12 13:51 UTCEPSS rescore
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- 2026-08-12 11:00 UTCGHSA enrichment
- 2026-08-11 13:43 UTCEPSS rescore
- 2026-08-11 13:10 UTCEG score recompute
- 2026-08-11 13:10 UTCGHSA enrichment
- 2026-08-11 00:00 UTCEPSS rescore
- 2026-08-10 15:21 UTCGHSA enrichment
- 2026-08-09 17:31 UTCEG score recompute
- 2026-08-09 17:31 UTCGHSA enrichment
- 2026-08-09 13:47 UTCEPSS rescore
- 2026-08-08 19:42 UTCGHSA enrichment
- 2026-08-07 21:52 UTCEG score recompute
- 2026-08-07 21:52 UTCGHSA enrichment
- 2026-08-07 16:30 UTCEPSS rescore
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- 2026-08-07 00:02 UTCGHSA enrichment
- 2026-08-06 13:47 UTCEPSS rescore
- 2026-08-06 02:12 UTCEG score recompute
- 2026-08-06 02:12 UTCGHSA enrichment
- 2026-08-05 19:17 UTCEPSS rescore
- 2026-08-05 04:23 UTCEG score recompute
- 2026-08-05 04:23 UTCGHSA enrichment
- 2026-08-04 15:10 UTCEPSS rescore
- 2026-08-04 10:39 UTCEPSS rescore
- 2026-08-04 06:21 UTCEG score recompute
- 2026-08-04 06:21 UTCGHSA enrichment
- 2026-08-03 10:36 UTCEPSS rescore
- 2026-08-03 08:22 UTCGHSA enrichment
- 2026-08-02 10:31 UTCEG score recompute
- 2026-08-02 10:31 UTCGHSA enrichment
- 2026-08-02 02:27 UTCEPSS rescore
- 2026-08-01 12:41 UTCEG score recompute
- 2026-08-01 12:41 UTCGHSA enrichment
- 2026-08-01 04:16 UTCEPSS rescore
- 2026-07-31 14:51 UTCGHSA enrichment
- 2026-07-30 17:00 UTCEG score recompute
- 2026-07-30 17:00 UTCGHSA enrichment
- 2026-07-30 16:28 UTCEPSS rescore
- 2026-07-30 01:30 UTCEPSS rescore
- 2026-07-29 18:59 UTCGHSA enrichment
- 2026-07-28 21:08 UTCEG score recompute
- 2026-07-28 21:08 UTCGHSA enrichment
- 2026-07-28 15:37 UTCEPSS rescore
- 2026-07-27 23:18 UTCEG score recompute
- 2026-07-27 23:17 UTCGHSA enrichment
- 2026-07-27 14:14 UTCEPSS rescore
- 2026-07-27 01:11 UTCEG score recompute
- 2026-07-27 01:10 UTCGHSA enrichment
Frequently asked(5)
What is CVE-2026-9729?
When was CVE-2026-9729 disclosed?
Is CVE-2026-9729 actively exploited?
What is the CVSS score of CVE-2026-9729?
How do I remediate CVE-2026-9729?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-9729
Is Your Infrastructure Affected by CVE-2026-9729?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.