CVE-2011-1838

NONECVSS 0.0Weaponized
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 3%CVSS: —Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Multiple cross-site scripting (XSS) vulnerabilities in TemplateLogin.pm in TWiki before 5.0.2 allow remote attackers to inject arbitrary web script or HTML via the origurl parameter to a (1) view script or (2) login script.

CVSS v3
—
EG Score
0.0(none)
EPSS
84.3%
KEV
Not listed

Published

May 20, 2011

Last Modified

April 29, 2026

References (16)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 38× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-06 16:23 UTCEPSS rescore
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  27. 2026-05-31 22:28 UTCEPSS rescore
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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-35761✓ verified
    First seen May 18, 2011

    TWiki 5.0.1 - 'origurl' Cross-Site Scripting

    Open source ↗

Related CVEs(same CWE)

Frequently asked(4)

What is CVE-2011-1838?
CVE-2011-1838 is a none vulnerability published on May 20, 2011. Multiple cross-site scripting (XSS) vulnerabilities in TemplateLogin.pm in TWiki before 5.0.2 allow remote attackers to inject arbitrary web script or HTML via the origurl parameter to a (1) view script or (2) login script.
When was CVE-2011-1838 disclosed?
CVE-2011-1838 was first published in the National Vulnerability Database on May 20, 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-2011-1838 actively exploited?
CVE-2011-1838 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 84.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2011-1838?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-1838, 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.

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