CVE-2017-14143

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-14. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this weekWeaponized
9.8EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 75%
  • Public exploit code is available (Metasploit, Exploit-DB (verified), epss top5pct, epss high, public exploit)
CISA-KEV: Not listedEPSS PROB: 75%CVSS: 9.8Exploit: Metasploit · Exploit-DB (verified) · epss top5pct · epss high · public exploitExposed: 0

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

The getUserzoneCookie function in Kaltura before 13.2.0 uses a hardcoded cookie secret to validate cookie signatures, which allows remote attackers to bypass an intended protection mechanism and consequently conduct PHP object injection attacks and execute arbitrary PHP code via a crafted userzone cookie.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
79(Track*)
EG Risk 79/100SSVC: 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
Severity98% × 45%
Exploitation76% × 40%
Automatability30% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
75%
EPSS %ILE
99%
KEV
Not listed

Published

September 19, 2017

Last Modified

June 17, 2026

Advisory Details (5)

Auto-updated Jul 27, 2026
⚠️ Active exploitation confirmed. Upstream fix merged — awaiting tagged release. Sources: github_commit.
generic🟡 PoC Available

Kaltura - Remote PHP Code Execution over Cookie (Metasploit) - PHP remote Exploit

https://www.exploit-db.com/exploits/43876/
generic🟡 PoC Available

Kaltura < 13.2.0 - Remote Code Execution - PHP webapps Exploit

https://www.exploit-db.com/exploits/43028/
generic🔴 Active Exploitation
https://telekomsecurity.github.io/assets/advisories/20170912_kaltura-advisory.txt
github_commit

commit 6a6d14328b7a (kaltura/server)

Fix landed in kaltura/server commit 6a6d14328b7a — awaiting tagged release

https://github.com/kaltura/server/commit/6a6d14328b7a1493e8c47f9565461e5f88be20c9#diff-0770640cc76112cbf77bebc604852682
generic
http://www.securityfocus.com/bid/100976

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× 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.

  1. 2026-07-26 14:51 UTCEPSS rescore
  2. 2026-07-25 09:11 UTCOSV refresh
  3. 2026-07-23 14:15 UTCEPSS rescore
  4. 2026-07-23 01:27 UTCEG score recompute
  5. 2026-07-22 22:06 UTCEG score recompute
  6. 2026-07-22 14:04 UTCEPSS rescore
  7. 2026-07-21 15:21 UTCEPSS rescore
  8. 2026-07-21 15:21 UTCEPSS rescore
  9. 2026-07-20 17:04 UTCEPSS rescore
  10. 2026-07-20 17:04 UTCEPSS rescore
  11. 2026-07-15 16:54 UTCEPSS rescore
  12. 2026-07-15 16:54 UTCEPSS rescore
  13. 2026-07-13 06:09 UTCEPSS rescore
  14. 2026-07-12 05:43 UTCEPSS rescore
  15. 2026-07-09 19:06 UTCEPSS rescore
  16. 2026-07-08 04:05 UTCOSV refresh
  17. 2026-07-07 13:42 UTCEPSS rescore
  18. 2026-07-04 06:28 UTCEPSS rescore
  19. 2026-07-01 15:02 UTCEPSS rescore
  20. 2026-07-01 15:02 UTCEPSS rescore
  21. 2026-06-28 14:04 UTCEPSS rescore
  22. 2026-06-28 04:53 UTCEPSS rescore
  23. 2026-06-27 03:05 UTCEPSS rescore
  24. 2026-06-25 13:47 UTCEPSS rescore
  25. 2026-06-25 13:47 UTCEPSS rescore
Show 46 more
  1. 2026-06-23 21:30 UTCEPSS rescore
  2. 2026-06-21 01:57 UTCEPSS rescore
  3. 2026-06-21 01:57 UTCEPSS rescore
  4. 2026-06-19 15:55 UTCOSV refresh
  5. 2026-06-18 17:50 UTCEPSS rescore
  6. 2026-06-17 17:50 UTCEPSS rescore
  7. 2026-06-16 17:50 UTCEPSS rescore
  8. 2026-06-15 17:45 UTCEPSS rescore
  9. 2026-06-14 23:14 UTCEPSS rescore
  10. 2026-06-14 23:14 UTCEPSS rescore
  11. 2026-06-12 23:09 UTCEPSS rescore
  12. 2026-06-11 13:57 UTCEPSS rescore
  13. 2026-06-10 22:15 UTCEPSS rescore
  14. 2026-06-08 14:14 UTCEPSS rescore
  15. 2026-06-07 15:22 UTCEPSS rescore
  16. 2026-06-07 15:22 UTCEPSS rescore
  17. 2026-06-06 13:45 UTCEPSS rescore
  18. 2026-06-06 13:45 UTCEPSS rescore
  19. 2026-06-05 22:44 UTCEPSS rescore
  20. 2026-06-05 06:08 UTCEPSS rescore
  21. 2026-06-05 06:08 UTCEPSS rescore
  22. 2026-06-01 13:49 UTCEPSS rescore
  23. 2026-06-01 13:49 UTCEPSS rescore
  24. 2026-05-31 00:14 UTCEPSS rescore
  25. 2026-05-30 22:23 UTCOSV refresh
  26. 2026-05-29 13:41 UTCEPSS rescore
  27. 2026-05-26 13:42 UTCEPSS rescore
  28. 2026-05-26 13:42 UTCEPSS rescore
  29. 2026-05-26 07:17 UTCEPSS rescore
  30. 2026-05-26 07:17 UTCEPSS rescore
  31. 2026-05-22 21:15 UTCEPSS rescore
  32. 2026-05-22 21:15 UTCEPSS rescore
  33. 2026-05-22 21:15 UTCEPSS rescore
  34. 2026-05-20 22:37 UTCEPSS rescore
  35. 2026-05-20 22:37 UTCEPSS rescore
  36. 2026-05-20 08:52 UTCGHSA enrichment
  37. 2026-05-20 04:43 UTCGHSA enrichment
  38. 2026-05-20 00:34 UTCGHSA enrichment
  39. 2026-05-19 20:25 UTCGHSA enrichment
  40. 2026-05-19 16:16 UTCGHSA enrichment
  41. 2026-05-19 12:07 UTCGHSA enrichment
  42. 2026-05-19 07:58 UTCGHSA enrichment
  43. 2026-05-19 03:49 UTCGHSA enrichment
  44. 2026-05-18 23:40 UTCEG score recompute
  45. 2026-05-18 21:30 UTCEPSS rescore
  46. 2026-05-18 21:30 UTCEPSS rescore

Publicly available exploits

(3 references)

Working exploit code is in the public domain (1 Metasploit module) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-43876✓ verified
    First seen Jan 24, 2018

    Kaltura - Remote PHP Code Execution over Cookie (Metasploit)

    Open source ↗
  • Exploit-DBEDB-43028✓ verified
    First seen Oct 23, 2017

    Kaltura < 13.2.0 - Remote Code Execution

    Open source ↗
  • Metasploitexploit/linux/http/kaltura_unserialize_cookie_rce✓ verified
    First seen Sep 12, 2017

    Kaltura Remote PHP Code Execution over Cookie

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2017-14143?
CVE-2017-14143 is a critical vulnerability published on September 19, 2017. The getUserzoneCookie function in Kaltura before 13.2.0 uses a hardcoded cookie secret to validate cookie signatures, which allows remote attackers to bypass an intended protection mechanism and consequently conduct PHP object injection attacks and execute arbitrary PHP code via a crafted userzone…
When was CVE-2017-14143 disclosed?
CVE-2017-14143 was first published in the National Vulnerability Database on September 19, 2017, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-14143 actively exploited?
CVE-2017-14143 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 75% probability of exploitation in the next 30 days, which ranks it in the top 0.5% of all scored CVEs.
What is the CVSS score of CVE-2017-14143?
CVE-2017-14143 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2017-14143?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-14143, 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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