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CVE-2026-86596

The s2Member plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, <= 260927 via the 'item_name' parameter parameter. This is due to insufficient sanitization in strip_php_tags_deep(), which only strips literal '<?' sequences, combined …

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The s2Member plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, <= 260927 via the 'item_name' parameter parameter. This is due to insufficient sanitization in strip_php_tags_deep(), which only strips literal '<?' sequences, combined with a post-interpolation placeholder cleanup that reassembles a valid '<?php' opener after the attacker-controlled value has already been embedded in the email template. This makes it possible for authenticated attackers, with custom-level access and above, to execute code on the server.
CVSS 9.8 (CRITICAL)

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
3.5/10
General review priority; not probability

Evidence confidence: Repository candidate

Why this priority?
  • Technical severity: CVSS 9.8: +3.43
  • Fresh EPSS: 1.49%: +0.04

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 1 documents and public datasets.

Hype components

Headline sample (25%)
0/100
Press, 30 days (60%)
0/100
Grounded branding (15%)
0/100
HYPE TOTAL0/100

Sources and documents

Latest Vulnerabilities
Technical advisory · 02 Nov 2026, 22:17 · CVE-2026-86596 - s2Member <= 260927 - Unauthenticated Remote Code Execution via 'item_name' IPN Parameter

Score evolution

● Hype   ● Reality

0.01.02.03.04.05.002 Nov 2026 · INSUFFICIENT DATAHype 0.0Reality 3.403 Nov 2026 · BELOW THRESHOLDSHype 0.0Reality 3.5Nov 2Nov 3

━ Hype Score (Perceived)  ━ Reality threat priority. Definition changes are not new attacks.

Public exploit evidence

1

Public exploit entries / repo candidates

See 1 repos with metrics
RepositoryStarsForksLanguageUpdated
thiscitze/cve-2026-86596-poc00Python02 Nov 2026, 23:21
Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs. Published 5 days ago. Exploitation evidence usually takes weeks to show up: a low reality score can mean there is no data yet, not that the flaw is mild.

Evidence in context

Confidence in exploitation evidence
Repository candidate
Priority basis
Exploitation in attacks unconfirmed; CVSS 9.8; EPSS 1.5%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
network access, no prior privileges, no user interaction.
Observed activity
Public exploit repositories reference this CVE; none is corroborated.
Known scale
Not quantified.
Evidence confidence basis
Repository candidate; functionality unverified

Score evaluated: 2026-11-05 14:00:29.412792+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Published
02 Nov 2026, 21:30
Score calculated
05 Nov 2026, 14:00
PoCs on GitHub
1 repositories