CVE-2015-10127Network attack vector

Browser script execution via unescaped request parameters

Published Dec 26, 2023 · Updated Nov 21, 2024

Reflected XSS in BestWebSoft Captcha Plus 2.0.6 and earlier allows remote attackers to inject browser scripts through crafted requests. Multiple request parameters are copied into generated JavaScript and plugin settings without adequate sanitization or output escaping. Execution requires an attacker to persuade a user to open a crafted link; the script runs in that user’s browser context.

CVSS severity6.1
Medium
EPSS probability0.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in BestWebSoft Captcha Plus 2.0.6 and earlier allows remote attackers to inject browser scripts through crafted requests. Multiple request parameters are copied into generated JavaScript and plugin settings without adequate sanitization or output escaping. Execution requires an attacker to persuade a user to open a crafted link; the script runs in that user’s browser context.

The record

CVE
CVE-2015-10127
Published
Dec 26, 2023
Updated
Nov 21, 2024
Vendor
BestWebSoft
Product
Captcha Plus
Classifications
CWE-79, T1204.001, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 26, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 21, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.0.0
  2. Affected versionversion=2.0.1
  3. Affected versionversion=2.0.2
  4. Affected versionversion=2.0.3
  5. Affected versionversion=2.0.4
  6. Affected versionversion=2.0.5
  7. Affected versionversion=2.0.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

BestWebSoft · Captcha Plusversion=2.0.0; version=2.0.1; version=2.0.2; version=2.0.3; version=2.0.4; version=2.0.5; version=2.0.6

Published CVSS scores

6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
3.5VulDB CNACVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
4.0VulDB CNAAV:N/AC:L/Au:S/C:N/I:P/A:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.001User Execution: Malicious Link
T1203Exploitation for Client Execution

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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