CVE-2017-9841 (GCVE-0-2017-9841)
Vulnerability from cvelistv5 – Published: 2017-06-27 17:00 – Updated: 2025-10-21 23:55Summary
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.
Severity
9.8 (Critical)
SSVC
Exploitation: active
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-07 14:09 UTC
CWE
- n/a
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
8 references
| URL | Tags |
|---|---|
| http://www.securityfocus.com/bid/101798 | vdb-entryx_refsource_BID |
| http://www.securitytracker.com/id/1039812 | vdb-entryx_refsource_SECTRACK |
| https://security.gentoo.org/glsa/201711-15 | vendor-advisoryx_refsource_GENTOO |
| https://www.oracle.com/security-alerts/cpuoct2021.html | x_refsource_MISC |
| https://github.com/sebastianbergmann/phpunit/comm… | x_refsource_MISC |
| https://github.com/sebastianbergmann/phpunit/pull/1956 | x_refsource_MISC |
| http://web.archive.org/web/20170701212357/http://… | x_refsource_MISC |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Date Public
2017-06-27 00:00
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 1832006c-f1d7-4c20-9faa-a1a3f5793b1a
Exploited: Yes
Timestamps
First Seen: 2022-02-15
Asserted: 2022-02-15
Scope
Notes: KEV entry: PHPUnit Command Injection Vulnerability | Affected: PHPUnit / PHPUnit | Description: PHPUnit 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. | Required action: Apply updates per vendor instructions. | Due date: 2022-08-15 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2017-9841
Evidence
Type: Vendor Report
Signal: Successful Exploitation
Confidence: 80%
Source: cisa-kev
Details
| Cwes | CWE-94 |
|---|---|
| Feed | CISA Known Exploited Vulnerabilities Catalog |
| Product | PHPUnit |
| Due Date | 2022-08-15 |
| Date Added | 2022-02-15 |
| Vendorproject | PHPUnit |
| Vulnerabilityname | PHPUnit Command Injection Vulnerability |
| Knownransomwarecampaignuse | Unknown |
References
Created: 2026-02-02 13:25 UTC
| Updated: 2026-02-06 07:53 UTC
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 8e019067-9b5f-4ebc-88d7-0a9f05578c31
Exploited: Yes
Timestamps
First Seen: 2023-10-13
Asserted: 2023-10-13
Last Seen: 2026-09-07
Scope
Asset Exposure: ['internet-facing']
Notes: Affected: PHPUnit - Sebastian Bergmann / PHPUnit | Class: other-software | IoT: no | In CISA KEV: yes | Honeypot connections on 2026-09-07: 4160
Evidence
Type: Honeypot
Signal: In The Wild Attempts
Confidence: 70%
Source: shadowserver
Details
| 1D | 160 |
|---|---|
| Iot | no |
| Feed | Shadowserver Foundation honeypot/exploited-vulnerabilities |
| Type | http-scan |
| Class | other-software |
| 7D Avg | 182 |
| Vendor | PHPUnit - Sebastian Bergmann |
| 30D Avg | 188 |
| 90D Avg | 196 |
| Product | PHPUnit |
| Cisa Kev | yes |
| Connections | 4160 |
| Observation Date | 2026-09-07 |
| Vulnerability Class | None |
| Vulnerability Score | None |
| Vulnerability Severity | None |
References
Created: 2026-07-01 05:53 UTC
| Updated: 2026-09-09 01:00 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: fc817c02-1bbd-4b3d-8d5a-e445ced2aaa8
Exploited: Yes
Timestamps
First Seen: 2022-02-15
Asserted: 2022-02-15
Scope
Notes: KEVIntel entry: 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... | Affected: PHPUnit / PHPUnit | CVSS: 9.8 (CRITICAL) | EPSS: 0.99999 | Used in malware: unknown | Not yet in CISA KEV: False
Evidence
Type: Public Report
Signal: Successful Exploitation
Confidence: 70%
Source: kevintel
Details
| Feed | KEVIntel (kevintel.com) |
|---|---|
| Title | 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... |
| Vendor | PHPUnit |
| Product | PHPUnit |
| Added Date | 2022-02-15T00:00:00.000Z |
| Cvss Score | 9.8 |
| Epss Score | 0.99999 |
| Cvss Severity | CRITICAL |
| Epss Percentile | 0.99994 |
| Used In Malware | unknown |
| Ahead Of Cisa Kev | None |
| Not Yet In Cisa Kev | False |
References
Created: 2026-06-23 11:13 UTC
| Updated: 2026-06-23 11:13 UTC
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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