Page generated: 07 Nov 2026, 05:40 UTC
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CVE-2021-3129

Ignition before 2.5.2, as used in Laravel and other products, allows unauthenticated remote attackers to execute arbitrary code because of insecure usage of file_get_contents() and file_put_contents(). This is exploitable on sites using debug mode with Laravel before 8.4.2.

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: 99.94%: +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: 10 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

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
Infosecurity Magazine
Press · 29 Oct 2025, 07:00 · PHP Servers and IoT Devices Face Growing Cyber-Attack Risks - Infosecurity Magazine
wiz.io
Press · 02 Sep 2025, 11:51 · CVE-2021-3129 Impact, Exploitability, and Mitigation Steps - wiz.io
The Record from Recorded Future News
Press · 10 Apr 2024, 07:00 · Romania-linked ‘Rubycarp’ hackers look for cryptomining, phishing DDoS opportunities - The Record from Recorded Future News
Infosecurity Magazine
Press · 12 Mar 2024, 07:00 · New Cloud Attack Targets Crypto CDN Meson Ahead of Launch - Infosecurity Magazine
See all 10 source documents
SecurityWeek
Press · 19 Sep 2023, 07:00 · CISA Says Owl Labs Vulnerabilities Requiring Close Physical Range Exploited in Attacks - SecurityWeek
EclecticIQ Blog
Press · 02 Jun 2023, 07:00 · Chinese Threat Actor Used Modified Cobalt Strike Variant to Attack Taiwanese Critical Infrastructure - EclecticIQ Blog
Rapid7
Press · 18 Feb 2022, 08:00 · Metasploit Weekly Wrap-Up: 2/18/22 - Rapid7
GreyNoise
Press · 01 Jun 2021, 07:00 · GreyNoise Use Cases: SOC Efficiency, Compromised Devices, Emerging Vulnerabilities | Cybersecurity Blog - GreyNoise
Ars Technica
Press · 09 Apr 2021, 07:00 · Windows and Linux devices are under attack by a new cryptomining worm - Ars Technica

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

4

Public exploit entries / repo candidates

See 4 repos with metrics
RepositoryStarsForksLanguageUpdated
joshuavanderpoll/CVE-2021-312915727Python21 May 2026, 06:40
ajisai-babu/CVE-2021-3129-exp131Python04 Mar 2023, 17:10
knqyf263/CVE-2021-3129123Python09 Oct 2021, 09:37
shadowabi/Laravel-CVE-2021-312950PHP29 Sep 2022, 04:02
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 99.9%
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 13:58:26.907878+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Published
12 Jan 2021, 14:07
First press mention
09 Apr 2021, 07:00
Added to the CISA KEV catalog
18 Sep 2023, 00:00
Latest press mention
29 Oct 2025, 07:00
Score calculated
05 Nov 2026, 13:58
PoCs on GitHub
4 repositories