The Gum Addon for Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'pop_tag' parameter in all versions up to, and including, 1.3.15 due to insufficient input sanitization and output escaping. 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-2026-8354
MEDIUMPre-NVD 6.46.4—Trending — 4 sources updated this week
EchelonGraph scoreHIGH confidence
Score 6.4 from GitHub Security Advisory published 2026-09-19. a secondary CVSS source baseline 6.4; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
6.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.4Exploit: None knownExposed: 0
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(high)
- 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
September 19, 2026
Last Modified
September 21, 2026
References (6)
- security@wordfencehttps://plugins.trac.wordpress.org/browser/gum-elementor-addon/tags/1.3.15/widgets/popover_btn.php#L726
- security@wordfencehttps://plugins.trac.wordpress.org/browser/gum-elementor-addon/tags/1.3.15/widgets/popover_btn.php#L767
- security@wordfencehttps://plugins.trac.wordpress.org/browser/gum-elementor-addon/trunk/widgets/popover_btn.php#L726
- security@wordfencehttps://plugins.trac.wordpress.org/browser/gum-elementor-addon/trunk/widgets/popover_btn.php#L767
- security@wordfencehttps://plugins.trac.wordpress.org/changeset?reponame=&old=3556711%40gum-elementor-addon&new=3556711%40gum-elementor-addon
- security@wordfencehttps://www.wordfence.com/threat-intel/vulnerabilities/id/143c3a66-ac67-48e1-800f-8479fd963da3?source=cve
Vendor Advisories for CVE-2026-8354(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 22× in last 7d / 22× 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.
- 2026-09-24 14:04 UTCEPSS rescore
- 2026-09-24 13:19 UTCEG score recompute
- 2026-09-24 13:19 UTCGHSA enrichment
- 2026-09-23 17:54 UTCEPSS rescore
- 2026-09-23 13:27 UTCEG score recompute
- 2026-09-23 13:27 UTCGHSA enrichment
- 2026-09-22 16:01 UTCEPSS rescore
- 2026-09-22 13:34 UTCEG score recompute
- 2026-09-22 13:34 UTCGHSA enrichment
- 2026-09-21 21:09 UTCEPSS rescore
- 2026-09-21 13:42 UTCEG score recompute
- 2026-09-21 13:42 UTCGHSA enrichment
- 2026-09-20 20:16 UTCEPSS rescore
- 2026-09-20 14:18 UTCEG score recompute
- 2026-09-20 14:18 UTCGHSA enrichment
- 2026-09-19 14:26 UTCEG score recompute
- 2026-09-19 14:26 UTCGHSA enrichment
- 2026-09-19 14:00 UTCEG score recompute
- 2026-09-19 14:00 UTCGHSA enrichment
- 2026-09-19 09:26 UTCEG score recompute
- 2026-09-19 08:31 UTCEG score recompute
- 2026-09-19 08:30 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2026-8354?
CVE-2026-8354 is a medium vulnerability published on September 19, 2026. The Gum Addon for Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'pop_tag' parameter in all versions up to, and including, 1.3.15 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with…
When was CVE-2026-8354 disclosed?
CVE-2026-8354 was first published in the National Vulnerability Database on September 19, 2026, with the most recent update on September 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8354 actively exploited?
CVE-2026-8354 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 74.3% of all scored CVEs.
What is the CVSS score of CVE-2026-8354?
CVE-2026-8354 has a CVSS v3 base score of 6.4 (NVD).
How do I remediate CVE-2026-8354?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8354, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-8354
Is Your Infrastructure Affected by CVE-2026-8354?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.