Froxlor is open source server administration software. Prior to 2.3.8, DNS TXT record content accepted by lib/Froxlor/Api/Commands/DomainZones.php can contain HTML special characters, lib/Froxlor/UI/Callbacks/Text.php returns the content from Text::wordwrap without HTML escaping, and templates/Froxlor/table/table.html.twig renders the callback result with the raw filter. An authenticated customer with DNS editor access can store JavaScript-bearing content in a TXT record. When an administrator views the affected domain's DNS configuration, the payload executes automatically in the administrator's browser session, which can expose session data or perform privileged panel actions. This issue is fixed in version 2.3.8.
CVE-2026-54347
HIGHPre-NVD 8.78.7—Trending — 3 sources updated this week
EchelonGraph scoreMEDIUM confidence
This high-severity CVE scores 8.7 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 68% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, secondary
8.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.7Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.7
- EG Score
- 8.7(medium)
- EG Risk
- 39(Track)EG Risk 39/100SSVC: 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 computedSeverity87% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 32%
- KEV
- Not listed
Published
August 18, 2026
Last Modified
August 19, 2026
Advisory Details (3)
Auto-updated Aug 18, 2026🔬 Proof of concept available. Patch available. Sources: github_release, github, github_commit.
github_release Patch Available
froxlor security release 2.3.8
Patch available: froxlor/froxlor 2.3.8
https://github.com/froxlor/froxlor/releases/tag/2.3.8github_commit Patch Available
commit a1d8f425b11e (froxlor/froxlor)
Patch available: froxlor/froxlor 2.3.8 (contains commit a1d8f425b11e)
https://github.com/froxlor/froxlor/commit/a1d8f425b11ef7597949018814afa056a842cba0github Patch Available🟡 PoC Available
Stored XSS in DNS TXT Record Content Allows Customer-to-Admin Account Takeover · Advisory · froxlor/froxlor · GitHub
https://github.com/froxlor/froxlor/security/advisories/GHSA-43gm-9rr3-cx7gVendor Advisories for CVE-2026-54347(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(1 across 1 ecosystem)
Packagist(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| froxlor/froxlor | 0.10.0 ... 2.3.7 (109 versions) | 2.3.8 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 8× in last 7d / 8× 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.
- 2026-08-21 05:47 UTCEG score recompute
- 2026-08-20 22:55 UTCEPSS rescore
- 2026-08-19 19:21 UTCEG score recompute
- 2026-08-19 18:23 UTCEG score recompute
- 2026-08-19 17:04 UTCEPSS rescore
- 2026-08-18 21:36 UTCEG score recompute
- 2026-08-18 20:20 UTCEG score recompute
- 2026-08-18 20:18 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2026-54347?
CVE-2026-54347 is a high vulnerability published on August 18, 2026. Froxlor is open source server administration software. Prior to 2.3.8, DNS TXT record content accepted by lib/Froxlor/Api/Commands/DomainZones.php can contain HTML special characters, lib/Froxlor/UI/Callbacks/Text.php returns the content from Text::wordwrap without HTML escaping, and…
When was CVE-2026-54347 disclosed?
CVE-2026-54347 was first published in the National Vulnerability Database on August 18, 2026, with the most recent update on August 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-54347 actively exploited?
CVE-2026-54347 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 68.5% of all scored CVEs.
What is the CVSS score of CVE-2026-54347?
CVE-2026-54347 has a CVSS v3 base score of 8.7 (NVD).
How do I remediate CVE-2026-54347?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-54347, 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
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-54347
Is Your Infrastructure Affected by CVE-2026-54347?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.