CVE-2015-8562 (GCVE-0-2015-8562)
Vulnerability from cvelistv5 – Published: 2015-12-16 21:00 – Updated: 2024-08-06 08:20Summary
Joomla! 1.5.x, 2.x, and 3.x before 3.4.6 allow remote attackers to conduct PHP object injection attacks and execute arbitrary PHP code via the HTTP User-Agent header, as exploited in the wild in December 2015.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/39033/ | exploitx_refsource_EXPLOIT-DB |
| http://www.securityfocus.com/archive/1/537219/100… | mailing-listx_refsource_BUGTRAQ |
| https://www.exploit-db.com/exploits/38977/ | exploitx_refsource_EXPLOIT-DB |
| http://packetstormsecurity.com/files/135100/Jooml… | x_refsource_MISC |
| http://packetstormsecurity.com/files/134949/Jooml… | x_refsource_MISC |
| https://developer.joomla.org/security-centre/630-… | x_refsource_CONFIRM |
| http://www.securityfocus.com/bid/79195 | vdb-entryx_refsource_BID |
| http://www.rapid7.com/db/modules/exploit/multi/ht… | x_refsource_MISC |
| https://blog.sucuri.net/2015/12/remote-command-ex… | x_refsource_MISC |
Date Public
2015-12-13 00:00
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 72c6a061-eb95-47ba-af42-924f35e989d7
Exploited: Yes
Characteristics
Severity:
75.0
Timestamps
First Seen: 2023-10-14
Asserted: 2023-10-14
Last Seen: 2026-08-28
Scope
Asset Exposure: ['internet-facing']
Notes: Affected: Open Source Matters, Inc/Joomla community / Joomla | Class: cms | Severity: High (CVSS 7.5) | IoT: no | In CISA KEV: no | Honeypot connections on 2026-08-28: 2
Evidence
Type: Honeypot
Signal: In The Wild Attempts
Confidence: 70%
Source: shadowserver
Details
| 1D | 1 |
|---|---|
| Iot | no |
| Feed | Shadowserver Foundation honeypot/exploited-vulnerabilities |
| Type | http-scan |
| Class | cms |
| 7D Avg | 0 |
| Vendor | Open Source Matters, Inc/Joomla community |
| 30D Avg | 0 |
| 90D Avg | 0 |
| Product | Joomla |
| Cisa Kev | no |
| Connections | 2 |
| Observation Date | 2026-08-28 |
| Vulnerability Class | CVSS |
| Vulnerability Score | 7.5 |
| Vulnerability Severity | High |
References
Created: 2026-07-01 09:11 UTC
| Updated: 2026-08-30 01:01 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: f6920af6-8647-4644-9e84-78be790ec3ef
Exploited: Yes
Timestamps
First Seen: 2015-12-16
Asserted: 2015-12-16
Scope
Notes: KEVIntel entry: Joomla! 1.5.x, 2.x, and 3.x before 3.4.6 allow remote attackers to conduct PHP object injection attacks and execute arbitrary PHP code via the HTTP... | Affected: Joomla! / Joomla! | CVSS: 7.5 (HIGH) | Used in malware: unknown | Not yet in CISA KEV: True
Evidence
Type: Public Report
Signal: Successful Exploitation
Confidence: 70%
Source: kevintel
Details
| Feed | KEVIntel (kevintel.com) |
|---|---|
| Title | Joomla! 1.5.x, 2.x, and 3.x before 3.4.6 allow remote attackers to conduct PHP object injection attacks and execute arbitrary PHP code via the HTTP... |
| Vendor | Joomla! |
| Product | Joomla! |
| Added Date | 2015-12-16T21:00:00.000Z |
| Cvss Score | 7.5 |
| Epss Score | None |
| Cvss Severity | HIGH |
| Epss Percentile | None |
| Used In Malware | unknown |
| Ahead Of Cisa Kev | None |
| Not Yet In Cisa Kev | True |
References
Created: 2026-06-23 11:12 UTC
| Updated: 2026-06-23 11:12 UTC
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Joomla! 1.5.x, 2.x, and 3.x before 3.4.6 allow remote attackers to conduct PHP object injection attacks and execute arbitrary PHP code via the HTTP User-Agent header, as exploited in the wild in December 2015."
},
{
"lang": "es",
"value": "Joomla! 1.5.x, 2.x y 3.x en versiones anteriores a 3.4.6 permite a atacantes remotos llevar a cabo ataques de inyecci\u00f3n de objetos PHP y ejecutar c\u00f3digo PHP arbitrario a trav\u00e9s de la cabecera HTTP User-Agent header, como fue explotado en Diciembre 2015."
}
],
"id": "CVE-2015-8562",
"lastModified": "2026-05-06T22:30:45.220",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 7.5,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2015-12-16T21:59:06.390",
"references": [
{
"source": "cve@mitre.org",
"tags": [
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],
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},
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},
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},
{
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},
{
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},
{
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},
{
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],
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},
{
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},
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},
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"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
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"value": "CWE-20"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
}
}
}
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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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