CVE-2015-4410Network attack vector

DoS and XSS via ObjectId regex

Published Feb 20, 2020 · Updated Aug 6, 2024

Denial of service in rubygem-moped before the security fix allows remote attackers to consume worker resources or trigger cross-site scripting through crafted strings. The Moped::BSON::ObjecId.legal? method validates ObjectId input with line-anchored regular-expression boundaries, allowing trailing-newline or multiline data to pass as valid. Exploitation requires a remotely reachable caller that supplies attacker-controlled ObjectId text; the documented consequences are worker exhaustion and XSS, with no evidence of confidentiality or integrity impact beyond script execution in an affected consumer.

CVSS severity7.5
High
EPSS probability5.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in rubygem-moped before the security fix allows remote attackers to consume worker resources or trigger cross-site scripting through crafted strings. The Moped::BSON::ObjecId.legal? method validates ObjectId input with line-anchored regular-expression boundaries, allowing trailing-newline or multiline data to pass as valid. Exploitation requires a remotely reachable caller that supplies attacker-controlled ObjectId text; the documented consequences are worker exhaustion and XSS, with no evidence of confidentiality or integrity impact beyond script execution in an affected consumer.

The record

CVE
CVE-2015-4410
Published
Feb 20, 2020
Updated
Aug 6, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-20, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 20, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.0NVDAV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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