CVE-2026-33704

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Source
https://cve.org/CVERecord?id=CVE-2026-33704
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33704.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-33704
Aliases
  • GHSA-phfx-pwwg-945v
Published
2026-04-10T18:30:48.478Z
Modified
2026-08-05T03:32:13.535549911Z
Severity
  • 7.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L CVSS Calculator
Summary
Chamilo LMS Affected by Authenticated Arbitrary File Write via BigUpload endpoint
Details

Chamilo LMS is a learning management system. Prior to 1.11.38, any authenticated user (including students) can write arbitrary content to files on the server via the BigUpload endpoint. The key parameter controls the filename and the raw POST body becomes the file content. While .php extensions are filtered to .phps, the .pht extension passes through unmodified. On Apache configurations where .pht is handled as PHP, this leads to Remote Code Execution. This vulnerability is fixed in 1.11.38.

Database specific 
{
    "cwe_ids": [
        "CWE-434"
    ],
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33704.json",
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "fixed": "1.11.38"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/chamilo/chamilo-lms

Affected ranges

Type
GIT
Repo
https://github.com/chamilo/chamilo-lms
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
9748f1ffbdb8b6dc84c0e0591c9d3c1d92e21c00
Database specific 
{
    "source": "REFERENCES"
}

Affected versions

Other
CHAMILO_1_8_7_ALPHA_1
CHAMILO_1_8_7_ALPHA_2
CHAMILO_1_8_7_RC2
CHAMILO_1_8_7_RC_1
CHAMILO_1_8_7_STABLE
CHAMILO_1_8_7_STABLE_BIS
CHAMILO_1_8_8_2_RC_1
CHAMILO_1_8_8_2_STABLE
CHAMILO_1_8_8_2_STABLE_2
CHAMILO_1_8_8_4_STABLE
CHAMILO_1_8_8_ALPHA
CHAMILO_1_8_8_BETA_1
CHAMILO_1_8_8_BETA_2
CHAMILO_1_9_0_ALPHA_1
CHAMILO_1_9_0_ALPHA_2
CHAMILO_1_9_0_ALPHA_4
CHAMILO_1_9_0_PRE_ALPHA
CHAMILO_1_9_0_RC_1
CHAMILO_1_9_0_STABLE_2
CHAMILO_1_9_0_STABLE_3
CHAMILO_1_9_2_STABLE
CHAMILO_1_9_2_STABLE_QUARTER
CHAMILO_1_9_4_ALPHA_1
CHAMILO_1_9_4_RC_1
CHAMILO_1_9_4_STABLE
CHAMILO_1_9_6_RC_1
CHAMILO_1_9_6_RC_2
CHAMILO_1_9_6_STABLE
CHAMILO_1_8_8.*
CHAMILO_1_8_8.3_STABLE_4
v1.*
v1.11.10
v1.11.12
v1.11.14
v1.11.14-beta.1
v1.11.18
v1.11.20
v1.11.20-beta.1
v1.11.22
v1.11.22-beta.1
v1.11.22-beta.2
v1.11.24
v1.11.26
v1.11.26-rc.1
v1.11.28
v1.11.30
v1.11.30-rc.1
v1.11.32
v1.11.36
v1.11.6
v1.11.6-alpha.1
v1.8.6.1
v1.9.8

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33704.json"