# BestWebSoft Captcha: Cross-site scripting vulnerability in Captcha prior to version 4.3.0… CVE record · `CVE-2017-2171` - **Identifiers:** `CVE-2017-2171` - **State:** Confirmed - **Severity:** No CVSS score - **Critical:** No - **CNA:** jpcert - **Technologies:** [BestWebSoft Captcha](https://agentprime.io/advisories/technology/bestwebsoft-captcha.md) · [BestWebSoft Car Rental](https://agentprime.io/advisories/technology/bestwebsoft-car-rental.md) · [BestWebSoft Contact Form Multi](https://agentprime.io/advisories/technology/bestwebsoft-contact-form-multi.md) · [BestWebSoft Contact Form](https://agentprime.io/advisories/technology/bestwebsoft-contact-form.md) · [BestWebSoft Contact Form to DB](https://agentprime.io/advisories/technology/bestwebsoft-contact-form-to-db.md) · [BestWebSoft Custom Admin Page](https://agentprime.io/advisories/technology/bestwebsoft-custom-admin-page.md) · [BestWebSoft Custom Fields Search](https://agentprime.io/advisories/technology/bestwebsoft-custom-fields-search.md) · [BestWebSoft Custom Search](https://agentprime.io/advisories/technology/bestwebsoft-custom-search.md) · [BestWebSoft Donate](https://agentprime.io/advisories/technology/bestwebsoft-donate.md) · [BestWebSoft Email Queue](https://agentprime.io/advisories/technology/bestwebsoft-email-queue.md) · [BestWebSoft Error Log Viewer](https://agentprime.io/advisories/technology/bestwebsoft-error-log-viewer.md) · [BestWebSoft Facebook Button](https://agentprime.io/advisories/technology/bestwebsoft-facebook-button.md) · [BestWebSoft Featured Posts](https://agentprime.io/advisories/technology/bestwebsoft-featured-posts.md) · [BestWebSoft Gallery Categories](https://agentprime.io/advisories/technology/bestwebsoft-gallery-categories.md) · [BestWebSoft Gallery](https://agentprime.io/advisories/technology/bestwebsoft-gallery.md) · [BestWebSoft Google +1](https://agentprime.io/advisories/technology/bestwebsoft-google-1.md) · [BestWebSoft Google AdSense](https://agentprime.io/advisories/technology/bestwebsoft-google-adsense.md) · [BestWebSoft Google Analytics](https://agentprime.io/advisories/technology/bestwebsoft-google-analytics.md) · [BestWebSoft Google Captcha (reCAPTCHA)](https://agentprime.io/advisories/technology/bestwebsoft-google-captcha-recaptcha.md) · [BestWebSoft Google Maps](https://agentprime.io/advisories/technology/bestwebsoft-google-maps.md) - **Published:** 22 May 2017 - **Updated:** 5 Aug 2024 - **Reviewed by a person:** No Published by the CVE Program (CNA: jpcert) at 22 May 2017, 16:00 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. ## Affected products, as the CNA wrote them - Vendor: BestWebSoft. Product: Captcha. - affected: `prior to version 4.3.0` - Vendor: BestWebSoft. Product: Car Rental. - affected: `prior to version 1.0.5` - Vendor: BestWebSoft. Product: Contact Form Multi. - affected: `prior to version 1.2.1` - Vendor: BestWebSoft. Product: Contact Form. - affected: `prior to version 4.0.6` - Vendor: BestWebSoft. Product: Contact Form to DB. - affected: `prior to version 1.5.7` - Vendor: BestWebSoft. Product: Custom Admin Page. - affected: `prior to version 0.1.2` - Vendor: BestWebSoft. Product: Custom Fields Search. - affected: `prior to version 1.3.2` - Vendor: BestWebSoft. Product: Custom Search. - affected: `prior to version 1.36` - Vendor: BestWebSoft. Product: Donate. - affected: `prior to version 2.1.1` - Vendor: BestWebSoft. Product: Email Queue. - affected: `prior to version 1.1.2` - Vendor: BestWebSoft. Product: Error Log Viewer. - affected: `prior to version 1.0.6` - Vendor: BestWebSoft. Product: Facebook Button. - affected: `prior to version 2.54` - Vendor: BestWebSoft. Product: Featured Posts. - affected: `prior to version 1.0.1` - Vendor: BestWebSoft. Product: Gallery Categories. - affected: `prior to version 1.0.9` - Vendor: BestWebSoft. Product: Gallery. - affected: `prior to version 4.5.0` - Vendor: BestWebSoft. Product: Google +1. - affected: `prior to version 1.3.4` - Vendor: BestWebSoft. Product: Google AdSense. - affected: `prior to version 1.44` - Vendor: BestWebSoft. Product: Google Analytics. - affected: `prior to version 1.7.1` - Vendor: BestWebSoft. Product: Google Captcha (reCAPTCHA). - affected: `prior to version 1.28` - Vendor: BestWebSoft. Product: Google Maps. - affected: `prior to version 1.3.6` - Vendor: BestWebSoft. Product: Google Shortlink. - affected: `prior to version 1.5.3` - Vendor: BestWebSoft. Product: Google Sitemap. - affected: `prior to version 3.0.8` - Vendor: BestWebSoft. Product: Htaccess. - affected: `prior to version 1.7.6` - Vendor: BestWebSoft. Product: Job Board. - affected: `prior to version 1.1.3` - Vendor: BestWebSoft. Product: Latest Posts. - affected: `prior to version 0.3` - Vendor: BestWebSoft. Product: Limit Attempts. - affected: `prior to version 1.1.8` - Vendor: BestWebSoft. Product: LinkedIn. - affected: `prior to version 1.0.5` - Vendor: BestWebSoft. Product: Multilanguage. - affected: `prior to version 1.2.2` - Vendor: BestWebSoft. Product: PDF & Print. - affected: `prior to version 1.9.4` - Vendor: BestWebSoft. Product: Pagination. - affected: `prior to version 1.0.7` - Vendor: BestWebSoft. Product: Pinterest. - affected: `prior to version 1.0.5` - Vendor: BestWebSoft. Product: Popular Posts. - affected: `prior to version 1.0.5` - Vendor: BestWebSoft. Product: Portfolio. - affected: `prior to version 2.4` - Vendor: BestWebSoft. Product: Post to CSV. - affected: `prior to version 1.3.1` - Vendor: BestWebSoft. Product: Profile Extra. - affected: `prior to version 1.0.7` - Vendor: BestWebSoft. Product: PromoBar. - affected: `prior to version 1.1.1` - Vendor: BestWebSoft. Product: Quotes and Tips. - affected: `prior to version 1.32` - Vendor: BestWebSoft. Product: Re-attacher. - affected: `prior to version 1.0.9` - Vendor: BestWebSoft. Product: Realty. - affected: `prior to version 1.1.0` - Vendor: BestWebSoft. Product: Relevant - Related Posts. - affected: `prior to version 1.2.0` And 11 more products. The full list is on the CVE record: ## Not analysed yet We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter. ## Severity and exploitation No source has published a CVSS score for this record yet. - **CISA KEV:** Not listed. - **EPSS:** 0.0089, the 59th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days. ## Timeline This record came from the full history of the CVE Program, published 22 May 2017. New records show when each source confirmed them. ## Sources - [CVE List: CVE-2017-2171](https://www.cve.org/CVERecord?id=CVE-2017-2171) - [NVD: CVE-2017-2171](https://nvd.nist.gov/vuln/detail/CVE-2017-2171) ### References from the CNA - (third-party-advisory, jvndb) - (third-party-advisory, jvn) Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description. ## Check whether this affects you This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run. - With the agentprime MCP server (), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: - As JSON: - Everything that needs attention now: --- The web page: . Everything for agents: .