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CVE-2000-1050· NVD / CVE Program· CNA mitre

Allaire JRun 3.0 http servlet server allows remote attackers to directly access the WEB-INF directory via a URL request that contains an ext

Allaire JRun 3.0 http servlet server allows remote attackers to directly access the WEB-INF directory via a URL request that contains an extra "/" in the beginning of the request (aka the "extra leading slash").

MediumCVSS 5.0 · v2.0—Proof of concept No fix recorded
Published
Dec 11, 2000
Updated
Sep 23, 2026
EPSS
8.2% · 95th percentile
CWE
—
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Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
20 / 40 · 5.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
2 / 30 · 8.2%

Affected systems

VendorProduct
macromediajrun

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • macromedia jrun3.0

Same product

macromedia: all records

Other highest-scoring records for the same primary product.

  • CVE-2002-0801Buffer overflow in the ISAPI DLL filter for Macromedia JRun 3.1 allows remote attackers to execute arbitrary code via a direct request to th
    43Plan
  • CVE-2002-0665Macromedia JRun Administration Server allows remote attackers to bypass authentication on the login form via an extra slash (/) in the URL.
    43Plan
  • CVE-2000-1053Allaire JRun 2.3.3 server allows remote attackers to compile and execute JSP code by inserting it via a cross-site scripting (CSS) attack an
    43Plan
  • CVE-2005-4472Stack-based buffer overflow in the Macromedia JRun 4 web server (JWS) allows remote attackers to cause a denial of service and possibly exec
    31Monitor
  • CVE-2002-1310Heap-based buffer overflow in the error-handling mechanism for the IIS ISAPI handler in Macromedia JRun 4.0 and earlier allows remote attack
    31Monitor
  • CVE-2001-1084Cross-site scripting vulnerability in Allaire JRun 3.0 and 2.3.3 allows a malicious webmaster to embed Javascript in a request for a .JSP, .
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Exploit-DB entry ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Exploit-DB entryremote2000-10-23

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. First PoC-49 d
  2. Published
  3. TodaySep 30, 2026+9424 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • No special conditions are required; it is repeatable.

If successful

Confidentiality
P · data can be read
Integrity
none
Availability
none
Attack complexity
Low
Confidentiality impact
P
Integrity impact
None
Availability impact
None

Weakness class (CWE)

—

CVSS vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records