Page generated: 07 Nov 2026, 04:32 UTC
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CVE-2017-9841

Util/PHP/eval-stdin.php in PHPUnit before 4.8.28 and 5.x before 5.6.3 allows remote attackers to execute arbitrary PHP code via HTTP POST data beginning with a "<?php " substring, as demonstrated by an attack on a site with an exposed /vendor folder, i.e., external access to the …

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Util/PHP/eval-stdin.php in PHPUnit before 4.8.28 and 5.x before 5.6.3 allows remote attackers to execute arbitrary PHP code via HTTP POST data beginning with a "<?php " substring, as demonstrated by an attack on a site with an exposed /vendor folder, i.e., external access to the /vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php URI.
CVSS 9.8 (CRITICAL) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
9.0/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 9.8: +1.47
  • Fresh EPSS: 100.00%: +0.50

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

Sources: 11 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

Help Net Security
Press · 18 Mar 2026, 07:00 · Cybercriminals scale up, government sector hit hardest - Help Net Security
Infosecurity Magazine
Press · 29 Oct 2025, 07:00 · PHP Servers and IoT Devices Face Growing Cyber-Attack Risks - Infosecurity Magazine
The Hacker News
Press · 29 Oct 2025, 07:00 · Experts Reports Sharp Increase in Automated Botnet Attacks Targeting PHP Servers and IoT Devices - The Hacker News
The Record from Recorded Future News
Press · 18 Aug 2025, 07:00 · Cryptomining group Kinsing expands operations to Russia, researchers warn - The Record from Recorded Future News
Cybersecurity Dive
Press · 24 Apr 2025, 07:00 · Threat groups exploit resurgent vulnerabilities - Cybersecurity Dive
See all 11 source documents
The Hacker News
Press · 21 Mar 2024, 07:00 · AndroxGh0st Malware Targets Laravel Apps to Steal Cloud Credentials - The Hacker News
Infosecurity Magazine
Press · 17 Jan 2024, 08:00 · US Government Urges Action to Mitigate Androxgh0st Malware Threat - Infosecurity Magazine
BleepingComputer
Press · 16 Jan 2024, 08:00 · FBI: Androxgh0st malware botnet steals AWS, Microsoft credentials - BleepingComputer
GBHackers News
Press · 06 Nov 2023, 08:00 · Hackers Actively Exploiting Linux Privilege Escalation Flaw to Attack Cloud Environments - GBHackers News
Ars Technica
Press · 09 Apr 2021, 07:00 · Windows and Linux devices are under attack by a new cryptomining worm - Ars Technica
Unit 42
Press · 22 Jan 2021, 08:00 · Network Attack Trends: Internet of Threats (August-October 2020) - Unit 42

Score evolution

● Hype   ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 0.0 · reality 9.0 (2026-11-02 15:12). The curve appears once the score changes.

Public exploit evidence

1

Public exploit entries / repo candidates

See 1 repos with metrics
RepositoryStarsForksLanguageUpdated
krisdewa/CVE-2017-9841-PHPUnit-Remote-Code-Execution-PoC00Python11 Jun 2026, 06:09
Public exploit evidence
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.

Evidence in context

Confidence in exploitation evidence
Exploitation recorded
Priority basis
Recorded exploitation; CVSS 9.8; EPSS 100.0%
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
Exploitation recorded in CISA KEV.
Known scale
Not quantified.
Evidence confidence basis
Trusted exploitation confirmation

Score evaluated: 2026-11-05 13:57:54.561888+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Published
27 Jun 2017, 17:00
First press mention
22 Jan 2021, 08:00
Added to the CISA KEV catalog
15 Feb 2022, 00:00
Latest press mention
18 Mar 2026, 07:00
Score calculated
05 Nov 2026, 13:57
PoCs on GitHub
1 repositories