CVE-2026-34241

HIGHNVD 8.78.7—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.7 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 72% 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
Elevated
8.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 8.7Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

CtrlPanel is open-source billing software for hosting providers. Versions 1.1.1 and prior contain a Stored Cross-Site Scripting (XSS) vulnerability in the ticket reply notification system. Unsanitized reply content ($newmessage) is stored directly in database notification payloads and later rendered unescaped via Blade's {!! !!} syntax in the recipient's browser. The flaw exists in both App\Notifications\Ticket\Admin\AdminReplyNotification (triggered when a user replies, targeting admins) and App\Notifications\Ticket\User\ReplyNotification (triggered when an admin replies, targeting users), allowing arbitrary JavaScript execution in the victim's session context. A low-privileged attacker can exploit this to hijack admin sessions, harvest credentials via fake login prompts or keyloggers, and escalate privileges by performing administrative actions on the victim's behalf. The reverse path also enables a malicious or compromised admin to target regular users in the same manner. This issue has been fixed in version 1.2.0.

CVSS v3
8.7
EG Score
8.7HIGHmedium confidence
EG Risk
55
EG Risk 55/100

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
Severity87% × 45%
Exploitation40% × 40%
Automatability0% × 15%
EPSS PROB
0.4%
EPSS %ILE
36th
KEV
Not listed

Published

May 19, 2026

Last Modified

July 24, 2026

Advisory Details (2)

Auto-updated May 19, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

Stored XSS in Ticket Reply Notifications Allows Session Hijacking · Advisory · Ctrlpanel-gg/panel · GitHub

https://github.com/Ctrlpanel-gg/panel/security/advisories/GHSA-cmrr-q3hw-3vqh
generic

Release 1.2.0 · Ctrlpanel-gg/panel · GitHub

https://github.com/Ctrlpanel-gg/panel/releases/tag/1.2.0

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 26× 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 183 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-34241?
CVE-2026-34241 is a high vulnerability published on May 19, 2026. CtrlPanel is open-source billing software for hosting providers. Versions 1.1.1 and prior contain a Stored Cross-Site Scripting (XSS) vulnerability in the ticket reply notification system. Unsanitized reply content ($newmessage) is stored directly in database notification payloads and later…
When was CVE-2026-34241 disclosed?
CVE-2026-34241 was first published on May 19, 2026, with the most recent update on July 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-34241 actively exploited?
CVE-2026-34241 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (36th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-34241?
CVE-2026-34241 has a CVSS v3 base score of 8.7 (NVD).
How do I remediate CVE-2026-34241?
A fix for CVE-2026-34241 is available: update to the fixed version the vendor names in its advisory.

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