CVE-2026-39897

MEDIUMNVD 6.16.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.1 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 95% 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, nvd
6.1
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.1Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Cacti is an open source performance and fault management framework. Versions 1.2.30 and below contain a Reflected XSS vulnerability in the html_auth_footer. This issue has been fixed in version 1.2.31.

CVSS v3
6.1
EG Score
6.1(medium)
EPSS
5.0%
KEV
Not listed

Published

June 24, 2026

Last Modified

June 25, 2026

Advisory Details (2)

Auto-updated Jun 25, 2026
Patch available. Sources: github, github_commit.
github Patch Available

Reflected XSS in html_auth_footer error message output · Advisory · Cacti/cacti · GitHub

https://github.com/Cacti/cacti/security/advisories/GHSA-2j98-xfjq-gw39
github_commit Patch Available

commit 7c544ea0b45d (Cacti/cacti)

Patch available: Cacti/cacti release/1.2.31 (contains commit 7c544ea0b45d)

https://github.com/Cacti/cacti/commit/7c544ea0b45de627f206eefe93005433c2c3864d

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 16× in last 7d / 47× 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.

  1. 2026-07-15 16:57 UTCEPSS rescore
  2. 2026-07-15 16:57 UTCEPSS rescore
  3. 2026-07-15 14:52 UTCEG score recompute
  4. 2026-07-15 02:00 UTCEPSS rescore
  5. 2026-07-14 12:51 UTCEG score recompute
  6. 2026-07-13 22:30 UTCEPSS rescore
  7. 2026-07-13 10:49 UTCEG score recompute
  8. 2026-07-13 06:13 UTCEPSS rescore
  9. 2026-07-13 06:13 UTCEPSS rescore
  10. 2026-07-12 08:48 UTCEG score recompute
  11. 2026-07-12 05:46 UTCEPSS rescore
  12. 2026-07-11 08:27 UTCEPSS rescore
  13. 2026-07-11 06:46 UTCEG score recompute
  14. 2026-07-10 04:45 UTCEG score recompute
  15. 2026-07-09 19:10 UTCEPSS rescore
  16. 2026-07-09 02:27 UTCEG score recompute
  17. 2026-07-08 15:15 UTCEPSS rescore
  18. 2026-07-08 00:26 UTCEG score recompute
  19. 2026-07-07 13:46 UTCEPSS rescore
  20. 2026-07-06 22:25 UTCEG score recompute
  21. 2026-07-06 16:27 UTCEPSS rescore
  22. 2026-07-06 16:27 UTCEPSS rescore
  23. 2026-07-06 02:23 UTCEPSS rescore
  24. 2026-07-06 02:23 UTCEPSS rescore
  25. 2026-07-05 20:24 UTCEG score recompute
Show 22 more
  1. 2026-07-05 02:30 UTCEPSS rescore
  2. 2026-07-04 18:23 UTCEG score recompute
  3. 2026-07-04 06:31 UTCEPSS rescore
  4. 2026-07-03 16:20 UTCEG score recompute
  5. 2026-07-02 14:18 UTCEG score recompute
  6. 2026-07-01 15:06 UTCEPSS rescore
  7. 2026-07-01 12:17 UTCEG score recompute
  8. 2026-06-30 23:22 UTCEPSS rescore
  9. 2026-06-30 10:12 UTCEG score recompute
  10. 2026-06-29 14:06 UTCEPSS rescore
  11. 2026-06-29 08:11 UTCEG score recompute
  12. 2026-06-28 14:07 UTCEPSS rescore
  13. 2026-06-28 06:09 UTCEG score recompute
  14. 2026-06-28 04:56 UTCEPSS rescore
  15. 2026-06-27 04:06 UTCEG score recompute
  16. 2026-06-27 03:08 UTCEPSS rescore
  17. 2026-06-26 02:05 UTCEG score recompute▲ 0.80
  18. 2026-06-25 15:47 UTCNVD updateCVSS v3 → 6.1
  19. 2026-06-25 13:49 UTCEPSS rescore
  20. 2026-06-25 13:49 UTCEPSS rescore
  21. 2026-06-25 00:04 UTCEG score recompute
  22. 2026-06-25 00:03 UTCNVD updatefirst tracked

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Frequently asked(5)

What is CVE-2026-39897?
CVE-2026-39897 is a medium vulnerability published on June 24, 2026. Cacti is an open source performance and fault management framework. Versions 1.2.30 and below contain a Reflected XSS vulnerability in the htmlauthfooter. This issue has been fixed in version 1.2.31.
When was CVE-2026-39897 disclosed?
CVE-2026-39897 was first published in the National Vulnerability Database on June 24, 2026, with the most recent update on June 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-39897 actively exploited?
CVE-2026-39897 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 5.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-39897?
CVE-2026-39897 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2026-39897?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-39897, 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

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