CVE-2011-1569

NONECVSS 0.0Trending — 3 sources updated this weekWeaponized

0.0

download.aspx in Douran Portal 3.9.7.8 allows remote attackers to obtain source code of arbitrary files under the web root via (1) a trailing ".", (2) a trailing space, or (3) mixed case in the FileNameAttach parameter.

CVSS v3: —
EG Score: 0.0(none)
EPSS: 93.3%
KEV: Not listed

Published

April 5, 2011

Last Modified

April 29, 2026

References (16)

cve@mitrehttp://osvdb.org/71250
cve@mitrehttp://secunia.com/advisories/43792
cve@mitrehttp://securityreason.com/securityalert/8180
cve@mitrehttp://soroush.secproject.com/blog/2011/01/unrestricted_file_download_v1_0/
cve@mitrehttp://www.exploit-db.com/exploits/17011
cve@mitrehttp://www.securityfocus.com/archive/1/517085/100/0/threaded
cve@mitrehttp://www.securityfocus.com/bid/46927
cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/66177
af854a3a-2127-422b-91ae-364da2661108http://osvdb.org/71250
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/43792
af854a3a-2127-422b-91ae-364da2661108http://securityreason.com/securityalert/8180
af854a3a-2127-422b-91ae-364da2661108http://soroush.secproject.com/blog/2011/01/unrestricted_file_download_v1_0/
af854a3a-2127-422b-91ae-364da2661108http://www.exploit-db.com/exploits/17011
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/517085/100/0/threaded
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/46927

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-200Exposure of Sensitive Information to an Unauthorized Actor

Data Freshness Timeline

(refreshed 12× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-04 13:09 UTCepss_batch
2026-06-04 13:09 UTCepss_batch
2026-06-02 20:10 UTCepss_batch
2026-06-02 20:10 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-29 13:40 UTCepss_batch
2026-05-29 08:21 UTCEG score recompute
2026-05-29 08:21 UTCGHSA enrichment
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-24 16:43 UTCepss_batch
2026-05-20 22:37 UTCepss_batch
2026-05-20 22:37 UTCepss_batch

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-17011✓ verified
First seen Mar 20, 2011
Douran 3.9.7.8 - File Download/Source Code Disclosure
Open source ↗

Frequently asked(4)

What is CVE-2011-1569?

CVE-2011-1569 is a none vulnerability published on April 5, 2011. download.aspx in Douran Portal 3.9.7.8 allows remote attackers to obtain source code of arbitrary files under the web root via (1) a trailing ".", (2) a trailing space, or (3) mixed case in the FileNameAttach parameter.

When was CVE-2011-1569 disclosed?

CVE-2011-1569 was first published in the National Vulnerability Database on April 5, 2011, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2011-1569 actively exploited?

CVE-2011-1569 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 93.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2011-1569?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-1569, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2011-1569

📅 Published

🔄 Last Modified

🔗 References (16)

Weakness Classification(1)

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(4)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2011-1569?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (16)

Frequently asked(4)

Related CVEs(same CWE)