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onyx --cves cve-2020-8256

CVE-2020-8256

MEDPOCPulse Secure
score
<0.1
cvss
4.9
epss
3.4%
published
2020-09-30
kev added
—
first seen

Pulse Connect Secure < 9.1R8.2 contains an XML External Entity (XXE) caused by insufficient input validation in the admin web interface, letting authenticated attackers read arbitrary files, exploit requires attacker to be authenticated.

Timeline

How this CVE moved toward exploitation. Chart: last 30 days — trend score, EPSS, community mentions per day; hover the event lane.

events2020-09-30 — PublishedP2026-10-21 — Tracked by OnyxT2026-10-21 — Public PoCXscore2026-10-21: score <0.1<0.1epss2026-09-22: epss 3.4%2026-09-23: epss 3.4%2026-09-24: epss 3.4%2026-09-25: epss 3.4%2026-09-26: epss 3.4%2026-09-27: epss 3.4%2026-09-28: epss 3.4%2026-09-29: epss 3.4%2026-09-30: epss 3.4%2026-10-01: epss 3.4%2026-10-02: epss 3.4%2026-10-03: epss 3.4%2026-10-04: epss 3.4%2026-10-05: epss 3.4%2026-10-06: epss 3.4%2026-10-07: epss 3.4%2026-10-08: epss 3.4%2026-10-09: epss 3.4%2026-10-10: epss 3.4%2026-10-11: epss 3.4%2026-10-12: epss 3.4%2026-10-13: epss 3.4%2026-10-14: epss 3.4%2026-10-15: epss 3.4%2026-10-16: epss 3.4%2026-10-18: epss 3.4%2026-10-19: epss 3.4%2026-10-20: epss 3.4%2026-10-21: epss 3.4%3.4%mentions/day0no mentions in 30 days2026-09-22today
  1. Published
  2. Tracked by Onyx
  3. Public PoC

Exploit availability

Public PoC flagged by vulnx; no direct exploit link among the citations.

Weaknesses

CWE-611

References 2