CVE-2026-0279

MEDIUMNVD 6.16.1—
EchelonGraph scoreMEDIUM confidence

Score 6.1 from GitHub Security Advisory (severity: LOW) published 2026-07-09. NVD baseline CVSS 6.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 6.1Exploit: None knownExposed: 0

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

Multiple cross site scripting vulnerabilities in the User-ID™ Authentication Portal (aka Captive Portal) service, GlobalProtect™ gateway/portal features and Clientless VPN of Palo Alto Networks PAN-OS® software enables a malicious unauthenticated user to store or execute malicious JavaScript payload.

The security risk posed by this issue is minimized when the management interface and access to the User-ID™ Authentication Portal is restricted to only trusted internal IP addresses according to our recommended best practice deployment guidelines https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431 .

This issue is applicable to PAN-OS software on PA-Series and VM-Series firewalls and on Panorama (virtual and M-Series).

Cloud NGFW is not affected by this vulnerability.

CVSS v3
6.1
EG Score
6.1(medium)
EG Risk
28(Track)
EG Risk 28/100SSVC: 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 computed
Severity61% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
48%
KEV
Not listed

Published

July 9, 2026

Last Modified

August 11, 2026

Advisory Details (1)

Auto-updated Jul 13, 2026
No patch confirmed yet.
generic

CVE-2026-0279 PAN-OS: Multiple Cross-Site Scripting (XSS) Vulnerabilities

https://security.paloaltonetworks.com/CVE-2026-0279

Vendor Advisories for CVE-2026-0279(2)

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 16× in last 7d / 77× 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 115 total refreshes for this CVE.

  1. 2026-08-30 06:44 UTCEG score recompute
  2. 2026-08-30 06:44 UTCGHSA enrichment
  3. 2026-08-30 01:21 UTCEPSS rescore
  4. 2026-08-28 21:40 UTCEPSS rescore
  5. 2026-08-28 02:43 UTCEG score recompute
  6. 2026-08-28 02:43 UTCGHSA enrichment
  7. 2026-08-27 14:24 UTCEPSS rescore
  8. 2026-08-27 00:57 UTCEG score recompute
  9. 2026-08-27 00:57 UTCGHSA enrichment
  10. 2026-08-25 15:54 UTCEG score recompute
  11. 2026-08-25 15:54 UTCGHSA enrichment
  12. 2026-08-25 13:48 UTCEPSS rescore
  13. 2026-08-24 13:44 UTCEG score recompute
  14. 2026-08-24 13:44 UTCGHSA enrichment
  15. 2026-08-23 11:56 UTCEG score recompute
  16. 2026-08-23 11:56 UTCGHSA enrichment
  17. 2026-08-23 00:19 UTCEPSS rescore
  18. 2026-08-22 10:09 UTCEG score recompute
  19. 2026-08-22 10:09 UTCGHSA enrichment
  20. 2026-08-21 23:48 UTCEPSS rescore
  21. 2026-08-21 08:17 UTCEG score recompute
  22. 2026-08-21 08:17 UTCGHSA enrichment
  23. 2026-08-20 22:55 UTCEPSS rescore
  24. 2026-08-20 06:30 UTCEG score recompute
  25. 2026-08-20 06:30 UTCGHSA enrichment
Show 75 more
  1. 2026-08-19 17:03 UTCEPSS rescore
  2. 2026-08-19 04:43 UTCEG score recompute
  3. 2026-08-19 04:43 UTCGHSA enrichment
  4. 2026-08-18 13:48 UTCEPSS rescore
  5. 2026-08-18 02:54 UTCEG score recompute
  6. 2026-08-18 02:54 UTCGHSA enrichment
  7. 2026-08-16 22:28 UTCEG score recompute
  8. 2026-08-16 22:28 UTCGHSA enrichment
  9. 2026-08-16 14:56 UTCEPSS rescore
  10. 2026-08-16 02:14 UTCEPSS rescore
  11. 2026-08-15 20:41 UTCEG score recompute
  12. 2026-08-15 20:41 UTCGHSA enrichment
  13. 2026-08-15 01:30 UTCEPSS rescore
  14. 2026-08-14 18:54 UTCEG score recompute
  15. 2026-08-14 18:54 UTCGHSA enrichment
  16. 2026-08-13 22:00 UTCEPSS rescore
  17. 2026-08-13 17:07 UTCGHSA enrichment
  18. 2026-08-12 15:11 UTCEG score recompute
  19. 2026-08-12 15:11 UTCGHSA enrichment
  20. 2026-08-12 13:50 UTCEPSS rescore
  21. 2026-08-11 13:42 UTCEPSS rescore
  22. 2026-08-11 13:23 UTCGHSA enrichment
  23. 2026-08-11 12:37 UTCEG score recompute
  24. 2026-08-11 12:37 UTCGHSA enrichment
  25. 2026-08-10 23:59 UTCEPSS rescore
  26. 2026-08-10 16:17 UTCGHSA enrichment
  27. 2026-08-09 13:48 UTCEG score recompute
  28. 2026-08-09 13:48 UTCGHSA enrichment
  29. 2026-08-09 13:46 UTCEPSS rescore
  30. 2026-08-08 16:37 UTCEPSS rescore
  31. 2026-08-08 12:02 UTCEG score recompute
  32. 2026-08-08 12:02 UTCGHSA enrichment
  33. 2026-08-07 10:15 UTCEG score recompute
  34. 2026-08-07 10:15 UTCGHSA enrichment
  35. 2026-08-06 13:46 UTCEPSS rescore
  36. 2026-08-06 08:29 UTCEG score recompute
  37. 2026-08-06 08:29 UTCGHSA enrichment
  38. 2026-08-05 19:17 UTCEPSS rescore
  39. 2026-08-05 06:43 UTCEG score recompute
  40. 2026-08-05 06:43 UTCGHSA enrichment
  41. 2026-08-04 15:09 UTCEPSS rescore
  42. 2026-08-04 10:38 UTCEPSS rescore
  43. 2026-08-04 04:56 UTCEG score recompute
  44. 2026-08-04 04:56 UTCGHSA enrichment
  45. 2026-08-03 10:35 UTCEPSS rescore
  46. 2026-08-03 03:10 UTCEG score recompute
  47. 2026-08-03 03:10 UTCGHSA enrichment
  48. 2026-08-02 02:26 UTCEPSS rescore
  49. 2026-08-02 01:23 UTCEG score recompute
  50. 2026-08-02 01:23 UTCGHSA enrichment
  51. 2026-08-01 04:15 UTCEPSS rescore
  52. 2026-07-31 23:37 UTCGHSA enrichment
  53. 2026-07-30 21:51 UTCEG score recompute
  54. 2026-07-30 21:50 UTCGHSA enrichment
  55. 2026-07-30 16:27 UTCEPSS rescore
  56. 2026-07-30 01:30 UTCEPSS rescore
  57. 2026-07-29 19:08 UTCGHSA enrichment
  58. 2026-07-28 17:21 UTCEG score recompute
  59. 2026-07-28 17:21 UTCGHSA enrichment
  60. 2026-07-28 15:36 UTCEPSS rescore
  61. 2026-07-27 15:35 UTCEG score recompute
  62. 2026-07-27 15:35 UTCGHSA enrichment
  63. 2026-07-27 14:13 UTCEPSS rescore
  64. 2026-07-26 14:54 UTCEPSS rescore
  65. 2026-07-26 14:54 UTCEPSS rescore
  66. 2026-07-26 12:17 UTCEG score recompute
  67. 2026-07-26 12:17 UTCGHSA enrichment
  68. 2026-07-25 14:17 UTCEPSS rescore
  69. 2026-07-24 14:17 UTCEPSS rescore
  70. 2026-07-23 14:18 UTCEPSS rescore
  71. 2026-07-23 03:04 UTCEG score recompute
  72. 2026-07-22 14:08 UTCEPSS rescore
  73. 2026-07-21 15:24 UTCEPSS rescore
  74. 2026-07-20 17:08 UTCEPSS rescore
  75. 2026-07-19 14:30 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-0279?
CVE-2026-0279 is a medium vulnerability published on July 9, 2026. Multiple cross site scripting vulnerabilities in the User-ID™ Authentication Portal (aka Captive Portal) service, GlobalProtect™ gateway/portal features and Clientless VPN of Palo Alto Networks PAN-OS® software enables a malicious unauthenticated user to store or execute malicious JavaScript…
When was CVE-2026-0279 disclosed?
CVE-2026-0279 was first published in the National Vulnerability Database on July 9, 2026, with the most recent update on August 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-0279 actively exploited?
CVE-2026-0279 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 52.4% of all scored CVEs.
What is the CVSS score of CVE-2026-0279?
CVE-2026-0279 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2026-0279?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-0279, 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.

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