- Description
- ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. Versions prior to 2.9.10 contain a denial of service vulnerability similar to GHSA-859r-vvv8-rm8r/CVE-2025-47947. The `sanitiseArg` (and `sanitizeArg` - this is the same action but an alias) is vulnerable to adding an excessive number of arguments, thereby leading to denial of service. Version 2.9.10 fixes the issue. As a workaround, avoid using rules that contain the `sanitiseArg` (or `sanitizeArg`) action.
- Source
- security-advisories@github.com
- NVD status
- Analyzed
- Products
- modsecurity
CVSS 3.1
- Type
- Secondary
- Base score
- 7.5
- Impact score
- 3.6
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity
- HIGH
- security-advisories@github.com
- CWE-1050
- Hype score
- Not currently trending
URGENT: #Oracle Linux 9 mod_security DoS Patch (CVE-2025-48866) - ELSA-2025-12838 Risk: Moderate (Service disruption). Patch NOW via ULN! Read more:👉 https://t.co/0XtB4rKmJl https://t.co/uCANPLlM6s
@Cezar_H_Linux
6 Aug 2025
33 Impressions
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Critical update for #openSUSE: Patch apache2-mod_security2 now for CVE-2025-47947 & CVE-2025-48866 DoS fixes. Affects Leap 15.4/15.6, SLE 15 SP4/5, Manager 4.3. Patch cmds: Read more: 👉 https://t.co/kwGpO7w3hE #CyberSecurity #LinuxAdmin https://t.co/ucT8GZL7Fj
@Cezar_H_Linux
19 Jun 2025
48 Impressions
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ModSecurity flaw CVE-2025-48866 lets remote attackers crash servers via argument sanitization, risking web systems using Apache, IIS, and Nginx. #CyberSecurity #ModSecurity #ServerVulnerability https://t.co/nlmyAyhGdp
@CyberSecTV_eu
15 Jun 2025
34 Impressions
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آیا می دانستید که برای WAF ها نیز آسیب پذیری منتشر می شود؟ به تازگی برای Mod_security که یکی از محبوبترین WAF ها می باشد ، آسیب پذیری جدیدی با کد شناسایی (CVE-2025-48866) از
@AmirHossein_sec
4 Jun 2025
56 Impressions
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CVE-2025-48866 ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. Versions prior to 2.9.10 contain a denial of service vu… https://t.co/KcTNLIJ7Zk
@CVEnew
2 Jun 2025
363 Impressions
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[
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:owasp:modsecurity:*:*:*:*:*:*:*:*",
"matchCriteriaId": "60F5291C-3B49-450D-B2C5-620633BBA7EB",
"versionEndExcluding": "2.9.10",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
]